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История версий PVS-Studio
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Введение
Как ввести лицензию PVS-Studio, и что делать дальше
Ознакомительный режим PVS-Studio
Системные требования
Технологии, используемые в PVS-Studio
История версий
История версий для старых релизов PVS-Studio (до версии 7.00)
Проверка проектов
На Windows
Знакомство со статическим анализатором кода PVS-Studio на Windows
Проверка проектов независимо от сборочной системы (C и C++)
Прямая интеграция анализатора в системы автоматизации сборки (C и C++)
На Linux и macOS
Установка PVS-Studio C# на Linux и macOS
Как запустить PVS-Studio C# на Linux и macOS
Установка и обновление PVS-Studio C++ на Linux
Установка и обновление PVS-Studio C++ на macOS
Как запустить PVS-Studio C++ на Linux и macOS
Кроссплатформенное использование
Работа с ядром Java анализатора из командной строки
Кроссплатформенная проверка C и C++ проектов в PVS-Studio
PVS-Studio для Embedded-разработки
Анализ C и C++ проектов на основе JSON Compilation Database
Среды разработки
Работа PVS-Studio в Visual Studio
Работа PVS-Studio в JetBrains Rider и CLion
Использование расширения PVS-Studio для Qt Creator
Интеграция с Qt Creator без использования плагина PVS-Studio
Использование расширения PVS-Studio для Visual Studio Code
Работа PVS-Studio в IntelliJ IDEA и Android Studio
Сборочные системы
Проверка проектов Visual Studio / MSBuild / .NET из командной строки с помощью PVS-Studio
Интеграция PVS-Studio с помощью CMake-модуля
Интеграция PVS-Studio Java в сборочную систему Gradle
Интеграция PVS-Studio Java в сборочную систему Maven
Игровые движки
Анализ проектов на Unity с помощью PVS-Studio
Проверка Unreal Engine проектов
Регулярное использование в процессе разработки
Запуск PVS-Studio в Docker
Запуск PVS-Studio в Jenkins
Запуск PVS-Studio в TeamCity
Загрузка результатов анализа в Jira
PVS-Studio и Continuous Integration
Режим инкрементального анализа PVS-Studio
Проверка коммитов и Pull Request'ов
Автоматическое развертывание PVS-Studio
Ускорение анализа C и C++ кода с помощью систем распределённой сборки (Incredibuild)
Интеграция результатов анализа PVS-Studio в инструменты контроля качества кода
Интеграция результатов анализа PVS-Studio в DefectDojo
Интеграция результатов анализа PVS-Studio в SonarQube
Интеграция результатов анализа PVS-Studio в CodeChecker
Развёртывание анализатора в облачных CI
Использование в Travis CI
Использование в CircleCI
Использование в GitLab CI/CD
Использование в GitHub Actions
Использование в Azure DevOps
Использование в AppVeyor
Использование в Buddy
Работа с результатами анализа
Отображение наиболее интересных предупреждений анализатора
Использование диагностических правил группы OWASP в PVS-Studio
Подавление сообщений анализатора (отключение выдачи предупреждений на существующий код)
Работа со списком диагностических сообщений в Visual Studio
Подавление ложноположительных предупреждений
Просмотр и конвертация результатов анализа
Использование относительных путей в файлах отчётов PVS-Studio
Просмотр результатов анализа в приложении C and C++ Compiler Monitoring UI
Оповещение команд разработчиков (утилита blame-notifier)
Фильтрация и обработка вывода анализатора при помощи файлов конфигурации диагностик (.pvsconfig)
Исключение из анализа файлов и каталогов
Дополнительная настройка и решение проблем
Советы по повышению скорости работы PVS-Studio
Устранение неисправностей при работе PVS-Studio
Дополнительная настройка диагностик
Механизм пользовательских аннотаций в формате JSON
Аннотирование C и C++ кода в формате JSON
Аннотирование C# кода в формате JSON
Предопределенный макрос PVS_STUDIO
Файл конфигурации анализа Settings.xml
Настройки: Общее
Настройки: Common Analyzer Settings
Настройки: Detectable Errors
Настройки: Don't Check Files
Настройки: Keyword Message Filtering
Настройки: Registration
Настройки: Specific Analyzer Settings
Сообщения PVS-Studio
Диагностики общего назначения (General Analysis, C++)
V501. Identical sub-expressions to the left and to the right of 'foo' operator.
V502. The '?:' operator may not work as expected. The '?:' operator has a lower priority than the 'foo' operator.
V503. Nonsensical comparison: pointer < 0.
V504. Semicolon ';' is probably missing after the 'return' keyword.
V505. The 'alloca' function is used inside the loop. This can quickly overflow stack.
V506. Pointer to local variable 'X' is stored outside the scope of this variable. Such a pointer will become invalid.
V507. Pointer to local array 'X' is stored outside the scope of this array. Such a pointer will become invalid.
V508. The 'new type(n)' pattern was detected. Probably meant: 'new type[n]'.
V509. Exceptions raised inside noexcept functions must be wrapped in a try..catch block.
V510. The 'Foo' function receives class-type variable as Nth actual argument. This is unexpected behavior.
V511. The sizeof() operator returns pointer size instead of array size.
V512. Call of the 'Foo' function will lead to buffer overflow.
V513. Use _beginthreadex/_endthreadex functions instead of CreateThread/ExitThread functions.
V514. Potential logical error. Size of a pointer is divided by another value.
V515. The 'delete' operator is applied to non-pointer.
V516. Non-null function pointer is compared to null. Consider inspecting the expression.
V517. Potential logical error. The 'if (A) {...} else if (A) {...}' pattern was detected.
V518. The 'malloc' function allocates suspicious amount of memory calculated by 'strlen(expr)'. Perhaps the correct expression is strlen(expr) + 1.
V519. The 'x' variable is assigned values twice successively. Perhaps this is a mistake.
V520. Comma operator ',' in array index expression.
V521. Expressions that use comma operator ',' are dangerous. Make sure the expression is correct.
V522. Possible null pointer dereference.
V523. The 'then' statement is equivalent to the 'else' statement.
V524. It is suspicious that the body of 'Foo_1' function is fully equivalent to the body of 'Foo_2' function.
V525. Code contains collection of similar blocks. Check items X, Y, Z, ... in lines N1, N2, N3, ...
V526. The 'strcmp' function returns 0 if corresponding strings are equal. Consider inspecting the condition for mistakes.
V527. The 'zero' value is assigned to pointer. Probably meant: *ptr = zero.
V528. Pointer is compared with 'zero' value. Probably meant: *ptr != zero.
V529. Suspicious semicolon ';' after 'if/for/while' operator.
V530. Return value of 'Foo' function is required to be used.
V531. The sizeof() operator is multiplied by sizeof(). Consider inspecting the expression.
V532. Consider inspecting the statement of '*pointer++' pattern. Probably meant: '(*pointer)++'.
V533. It is possible that a wrong variable is incremented inside the 'for' operator. Consider inspecting 'X'.
V534. It is possible that a wrong variable is compared inside the 'for' operator. Consider inspecting 'X'.
V535. The 'X' variable is used for this loop and outer loops.
V536. Constant value is represented by an octal form.
V537. Potential incorrect use of item 'X'. Consider inspecting the expression.
V538. The line contains control character 0x0B (vertical tabulation).
V539. Iterators are passed as arguments to 'Foo' function. Consider inspecting the expression.
V540. Member 'x' should point to string terminated by two 0 characters.
V541. String is printed into itself. Consider inspecting the expression.
V542. Suspicious type cast: 'Type1' to ' Type2'. Consider inspecting the expression.
V543. It is suspicious that value 'X' is assigned to the variable 'Y' of HRESULT type.
V544. It is suspicious that the value 'X' of HRESULT type is compared with 'Y'.
V545. Conditional expression of 'if' statement is incorrect for the HRESULT type value 'Foo'. The SUCCEEDED or FAILED macro should be used instead.
V546. The 'Foo(Foo)' class member is initialized with itself.
V547. Expression is always true/false.
V548. TYPE X[][] is not equivalent to TYPE **X. Consider inspecting type casting.
V549. The 'first' argument of 'Foo' function is equal to the 'second' argument.
V550. Suspicious precise comparison. Consider using a comparison with defined precision: fabs(A - B) < Epsilon or fabs(A - B) > Epsilon.
V551. Unreachable code under a 'case' label.
V552. A bool type variable is incremented. Perhaps another variable should be incremented instead.
V553. Length of function body or class declaration is more than 2000 lines. Consider refactoring the code.
V554. Incorrect use of smart pointer.
V555. Expression of the 'A - B > 0' kind will work as 'A != B'.
V556. Values of different enum types are compared.
V557. Possible array overrun.
V558. Function returns pointer/reference to temporary local object.
V559. Suspicious assignment inside the conditional expression of 'if/while/for' statement.
V560. Part of conditional expression is always true/false.
V561. Consider assigning value to 'foo' variable instead of declaring it anew.
V562. Bool type value is compared with value of N. Consider inspecting the expression.
V563. An 'else' branch may apply to the previous 'if' statement.
V564. The '&' or '|' operator is applied to bool type value. Check for missing parentheses or use the '&&' or '||' operator.
V565. Empty exception handler. Silent suppression of exceptions can hide errors in source code during testing.
V566. Integer constant is converted to pointer. Check for an error or bad coding style.
V567. Modification of variable is unsequenced relative to another operation on the same variable. This may lead to undefined behavior.
V568. It is suspicious that the argument of sizeof() operator is the expression.
V569. Truncation of constant value.
V570. Variable is assigned to itself.
V571. Recurring check. This condition was already verified in previous line.
V572. Object created using 'new' operator is immediately cast to another type. Consider inspecting the expression.
V573. Use of uninitialized variable 'Foo'. The variable was used to initialize itself.
V574. Pointer is used both as an array and as a pointer to single object.
V575. Function receives suspicious argument.
V576. Incorrect format. Consider checking the Nth actual argument of the 'Foo' function.
V577. Label is present inside switch(). Check for typos and consider using the 'default:' operator instead.
V578. Suspicious bitwise operation was detected. Consider inspecting it.
V579. The 'Foo' function receives the pointer and its size as arguments. This may be a potential error. Inspect the Nth argument.
V580. Suspicious explicit type casting. Consider inspecting the expression.
V581. Conditional expressions of 'if' statements located next to each other are identical.
V582. Consider reviewing the source code that uses the container.
V583. The '?:' operator, regardless of its conditional expression, always returns the same value.
V584. Same value is present on both sides of the operator. The expression is incorrect or can be simplified.
V585. Attempt to release memory that stores the 'Foo' local variable.
V586. The 'Foo' function is called twice to deallocate the same resource.
V587. Suspicious sequence of assignments: A = B; B = A;.
V588. Expression of the 'A =+ B' kind is used. Possibly meant: 'A += B'. Consider inspecting the expression.
V589. Expression of the 'A =- B' kind is used. Possibly meant: 'A -= B'. Consider inspecting the expression.
V590. Possible excessive expression or typo. Consider inspecting the expression.
V591. Non-void function must return value.
V592. Expression is enclosed by parentheses twice: ((expression)). One pair of parentheses is unnecessary or typo is present.
V593. Expression 'A = B == C' is calculated as 'A = (B == C)'. Consider inspecting the expression.
V594. Pointer to array is out of array bounds.
V595. Pointer was used before its check for nullptr. Check lines: N1, N2.
V596. Object was created but is not used. Check for missing 'throw' keyword.
V597. Compiler may delete 'memset' function call that is used to clear 'Foo' buffer. Use the RtlSecureZeroMemory() function to erase private data.
V598. Memory manipulation function is used to work with a class object containing a virtual table pointer. The result of such an operation may be unexpected.
V599. The virtual destructor is not present, although the 'Foo' class contains virtual functions.
V600. The 'Foo' pointer is always not equal to NULL. Consider inspecting the condition.
V601. Suspicious implicit type casting.
V602. The '<' operator should probably be replaced with '<<'. Consider inspecting this expression.
V603. Object was created but not used. If you wish to call constructor, use 'this->Foo::Foo(....)'.
V604. Number of iterations in loop equals size of a pointer. Consider inspecting the expression.
V605. Unsigned value is compared to the NN number. Consider inspecting the expression.
V606. Ownerless token 'Foo'.
V607. Ownerless expression 'Foo'.
V608. Recurring sequence of explicit type casts.
V609. Possible division or mod by zero.
V610. Undefined behavior. Check the shift operator.
V611. Memory allocation and deallocation methods are incompatible.
V612. Unconditional 'break/continue/return/goto' within a loop.
V613. Suspicious pointer arithmetic with 'malloc/new'.
V614. Use of 'Foo' uninitialized variable.
V615. Suspicious explicit conversion from 'float *' type to 'double *' type.
V616. Use of 'Foo' named constant with 0 value in bitwise operation.
V617. Argument of the '|' bitwise operation always contains non-zero value. Consider inspecting the condition.
V618. Dangerous call of 'Foo' function. The passed line may contain format specification. Example of safe code: printf("%s", str);
V619. Array is used as pointer to single object.
V620. Expression of sizeof(T)*N kind is summed up with pointer to T type. Consider inspecting the expression.
V621. Loop may execute incorrectly or may not execute at all. Consider inspecting the 'for' operator.
V622. First 'case' operator may be missing. Consider inspecting the 'switch' statement.
V623. Temporary object is created and then destroyed. Consider inspecting the '?:' operator.
V624. Use of constant NN. The resulting value may be inaccurate. Consider using the M_NN constant from <math.h>.
V625. Initial and final values of the iterator are the same. Consider inspecting the 'for' operator.
V626. It's possible that ',' should be replaced by ';'. Consider checking for typos.
V627. Argument of sizeof() is a macro, which expands to a number. Consider inspecting the expression.
V628. It is possible that a line was commented out improperly, thus altering the program's operation logic.
V629. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type. Consider inspecting the expression.
V630. The 'malloc' function is used to allocate memory for an array of objects that are classes containing constructors/destructors.
V631. Defining absolute path to file or directory is considered a poor coding style. Consider inspecting the 'Foo' function call.
V632. Argument is of the 'T' type. Consider inspecting the NN argument of the 'Foo' function.
V633. The '!=' operator should probably be used here. Consider inspecting the expression.
V634. Priority of '+' operation is higher than priority of '<<' operation. Consider using parentheses in the expression.
V635. Length should be probably multiplied by sizeof(wchar_t). Consider inspecting the expression.
V636. Expression was implicitly cast from integer type to real type. Consider using an explicit type cast to avoid overflow or loss of a fractional part.
V637. Use of two opposite conditions. The second condition is always false.
V638. Terminal null is present inside a string. Use of '\0xNN' characters. Probably meant: '\xNN'.
V639. One of closing ')' parentheses is probably positioned incorrectly. Consider inspecting the expression for function call.
V640. Code's operational logic does not correspond with its formatting.
V641. Buffer size is not a multiple of element size.
V642. Function result is saved inside the 'byte' type variable. Significant bits may be lost. This may break the program's logic.
V643. Suspicious pointer arithmetic. Value of 'char' type is added to a string pointer.
V644. Suspicious function declaration. Consider creating a 'T' type object.
V645. Function call may lead to buffer overflow. Bounds should not contain size of a buffer, but a number of characters it can hold.
V646. The 'else' keyword may be missing. Consider inspecting the program's logic.
V647. Value of 'A' type is assigned to a pointer of 'B' type.
V648. Priority of '&&' operation is higher than priority of '||' operation.
V649. Two 'if' statements with identical conditional expressions. The first 'if' statement contains function return. This means that the second 'if' statement is senseless.
V650. Type casting is used 2 times in a row. The '+' operation is executed. Probably meant: (T1)((T2)a + b).
V651. Suspicious operation of 'sizeof(X)/sizeof(T)' kind, where 'X' is of the 'class' type.
V652. Operation is executed 3 or more times in a row.
V653. Suspicious string consisting of two parts is used for initialization. Comma may be missing.
V654. Condition of a loop is always true/false.
V655. Strings were concatenated but not used. Consider inspecting the expression.
V656. Variables are initialized through the call to the same function. It's probably an error or un-optimized code.
V657. Function always returns the same value of NN. Consider inspecting the function.
V658. Value is subtracted from unsigned variable. It can result in an overflow. In such a case, the comparison operation may behave unexpectedly.
V659. Functions' declarations with 'Foo' name differ in 'const' keyword only, while these functions' bodies have different composition. It is suspicious and can possibly be an error.
V660. Program contains an unused label and function call: 'CC:AA()'. Probably meant: 'CC::AA()'.
V661. Suspicious expression 'A[B < C]'. Probably meant 'A[B] < C'.
V662. Different containers are used to set up initial and final values of iterator. Consider inspecting the loop expression.
V663. Infinite loop is possible. The 'cin.eof()' condition is insufficient to break from the loop. Consider adding the 'cin.fail()' function call to the conditional expression.
V664. Pointer is dereferenced on the initialization list before its check for null inside the body of a constructor function.
V665. Possible incorrect use of '#pragma warning(default: X)'. The '#pragma warning(push/pop)' should be used instead.
V666. Value may not correspond with the length of a string passed with YY argument. Consider inspecting the NNth argument of the 'Foo' function.
V667. The 'throw' operator does not have any arguments and is not located within the 'catch' block.
V668. Possible meaningless check for null, as memory was allocated using 'new' operator. Memory allocation will lead to an exception.
V669. Argument is a non-constant reference. The analyzer is unable to determine the position where this argument is modified. Consider checking the function for an error.
V670. Uninitialized class member is used to initialize another member. Remember that members are initialized in the order of their declarations inside a class.
V671. The 'swap' function may interchange a variable with itself.
V672. It is possible that creating a new variable is unnecessary. One of the function's arguments has the same name and this argument is a reference.
V673. More than N bits are required to store the value, but the expression evaluates to the T type which can only hold K bits.
V674. Expression contains a suspicious mix of integer and real types.
V675. Writing into read-only memory.
V676. Incorrect comparison of BOOL type variable with TRUE.
V677. Custom declaration of standard type. Consider using the declaration from system header files instead.
V678. Object is used as an argument to its own method. Consider checking the first actual argument of the 'Foo' function.
V679. The 'X' variable was not initialized. This variable is passed by reference to the 'Foo' function in which its value will be used.
V680. The 'delete A, B' expression only destroys the 'A' object. Then the ',' operator returns a resulting value from the right side of the expression.
V681. The language standard does not define order in which 'Foo' functions are called during evaluation of arguments.
V682. Suspicious literal: '/r'. It is possible that a backslash should be used instead: '\r'.
V683. The 'i' variable should probably be incremented instead of the 'n' variable. Consider inspecting the loop expression.
V684. Value of variable is not modified. It is possible that '1' should be present instead of '0'. Consider inspecting the expression.
V685. The expression contains a comma. Consider inspecting the return statement.
V686. Pattern A || (A && ...) was detected. The expression is excessive or contains a logical error.
V687. Size of array calculated by sizeof() operator was added to a pointer. It is possible that the number of elements should be calculated by sizeof(A)/sizeof(A[0]).
V688. The 'foo' local variable has the same name as one of class members. This can result in confusion.
V689. Destructor of 'Foo' class is not declared as virtual. A smart pointer may not destroy an object correctly.
V690. The class implements a copy constructor/operator=, but lacks the operator=/copy constructor.
V691. Empirical analysis. Possible typo inside the string literal. The 'foo' word is suspicious.
V692. Inappropriate attempt to append a null character to a string. To determine the length of a string by 'strlen' function correctly, use a string ending with a null terminator in the first place.
V693. It is possible that 'i < X.size()' should be used instead of 'X.size()'. Consider inspecting conditional expression of the loop.
V694. The condition (ptr - const_value) is only false if the value of a pointer equals a magic constant.
V695. Range intersections are possible within conditional expressions.
V696. The 'continue' operator will terminate 'do { ... } while (FALSE)' loop because the condition is always false.
V697. Number of elements in the allocated array equals the size of a pointer in bytes.
V698. Functions of strcmp() kind can return any values, not only -1, 0, or 1.
V699. It is possible that 'foo = bar == baz ? .... : ....' should be used here instead of 'foo = bar = baz ? .... : ....'. Consider inspecting the expression.
V700. It is suspicious that variable is initialized through itself. Consider inspecting the 'T foo = foo = x;' expression.
V701. Possible realloc() leak: when realloc() fails to allocate memory, original pointer is lost. Consider assigning realloc() to a temporary pointer.
V702. Classes should always be derived from std::exception (and alike) as 'public'.
V703. It is suspicious that the 'foo' field in derived class overwrites field in base class.
V704. The expression is always false on newer compilers. Avoid using 'this == 0' comparison.
V705. It is possible that 'else' block was forgotten or commented out, thus altering the program's operation logics.
V706. Suspicious division: sizeof(X) / Value. Size of every element in X array is not equal to divisor.
V707. Giving short names to global variables is considered to be bad practice.
V708. Dangerous construction is used: 'm[x] = m.size()', where 'm' is of 'T' class. This may lead to undefined behavior.
V709. Suspicious comparison found: 'a == b == c'. Remember that 'a == b == c' is not equal to 'a == b && b == c'.
V710. Suspicious declaration. There is no point to declare constant reference to a number.
V711. It is dangerous to create a local variable within a loop with a same name as a variable controlling this loop.
V712. Compiler may optimize out this loop or make it infinite. Use volatile variable(s) or synchronization primitives to avoid this.
V713. Pointer was used in the logical expression before its check for nullptr in the same logical expression.
V714. Variable is not passed into foreach loop by reference, but its value is changed inside of the loop.
V715. The 'while' operator has empty body. This pattern is suspicious.
V716. Suspicious type conversion: HRESULT -> BOOL (BOOL -> HRESULT).
V717. It is suspicious to cast object of base class V to derived class U.
V718. The 'Foo' function should not be called from 'DllMain' function.
V719. The switch statement does not cover all values of the enum.
V720. The 'SuspendThread' function is usually used when developing a debugger. See documentation for details.
V721. The VARIANT_BOOL type is used incorrectly. The true value (VARIANT_TRUE) is defined as -1.
V722. Abnormality within similar comparisons. It is possible that a typo is present inside the expression.
V723. Function returns a pointer to the internal string buffer of a local object, which will be destroyed.
V724. Converting integers or pointers to BOOL can lead to a loss of high-order bits. Non-zero value can become 'FALSE'.
V725. Dangerous cast of 'this' to 'void*' type in the 'Base' class, as it is followed by a subsequent cast to 'Class' type.
V726. Attempt to free memory containing the 'int A[10]' array by using the 'free(A)' function.
V727. Return value of 'wcslen' function is not multiplied by 'sizeof(wchar_t)'.
V728. Excessive check can be simplified. The '||' operator is surrounded by opposite expressions 'x' and '!x'.
V729. Function body contains the 'X' label that is not used by any 'goto' statements.
V730. Not all members of a class are initialized inside the constructor.
V731. The variable of char type is compared with pointer to string.
V732. Unary minus operator does not modify a bool type value.
V733. It is possible that macro expansion resulted in incorrect evaluation order.
V734. Excessive expression. Examine the substrings "abc" and "abcd".
V735. Possibly an incorrect HTML. The "</XX>" closing tag was encountered, while the "</YY>" tag was expected.
V736. The behavior is undefined for arithmetic or comparisons with pointers that do not point to members of the same array.
V737. It is possible that ',' comma is missing at the end of the string.
V738. Temporary anonymous object is used.
V739. EOF should not be compared with a value of the 'char' type. Consider using the 'int' type.
V740. Exception is of the 'int' type because NULL is defined as 0. Keyword 'nullptr' can be used for 'pointer' type exception.
V741. Use of the throw (a, b); pattern. It is possible that type name was omitted: throw MyException(a, b);.
V742. Function receives an address of a 'char' type variable instead of pointer to a buffer.
V743. The memory areas must not overlap. Use 'memmove' function.
V744. Temporary object is immediately destroyed after being created. Consider naming the object.
V745. A 'wchar_t *' type string is incorrectly converted to 'BSTR' type string.
V746. Object slicing. An exception should be caught by reference rather than by value.
V747. Suspicious expression inside parentheses. A function name may be missing.
V748. Memory for 'getline' function should be allocated only by 'malloc' or 'realloc' functions. Consider inspecting the first parameter of 'getline' function.
V749. Destructor of the object will be invoked a second time after leaving the object's scope.
V750. BSTR string becomes invalid. Notice that BSTR strings store their length before start of the text.
V751. Parameter is not used inside function's body.
V752. Creating an object with placement new requires a buffer of large size.
V753. The '&=' operation always sets a value of 'Foo' variable to zero.
V754. The expression of 'foo(foo(x))' pattern is excessive or contains an error.
V755. Copying from potentially tainted data source. Buffer overflow is possible.
V756. The 'X' counter is not used inside a nested loop. Consider inspecting usage of 'Y' counter.
V757. It is possible that an incorrect variable is compared with null after type conversion using 'dynamic_cast'.
V758. Reference was invalidated because of destruction of the temporary object returned by the function.
V759. Violated order of exception handlers. Exception caught by handler for base class.
V760. Two identical text blocks were detected. The second block starts with NN string.
V761. NN identical blocks were found.
V762. Consider inspecting virtual function arguments. See NN argument of function 'Foo' in derived class and base class.
V763. Parameter is always rewritten in function body before being used.
V764. Possible incorrect order of arguments passed to function.
V765. Compound assignment expression 'X += X + N' is suspicious. Consider inspecting it for a possible error.
V766. An item with the same key has already been added.
V767. Suspicious access to element by a constant index inside a loop.
V768. Variable is of enum type. It is suspicious that it is used as a variable of a Boolean-type.
V769. The pointer in the expression equals nullptr. The resulting value is meaningless and should not be used.
V770. Possible use of left shift operator instead of comparison operator.
V771. The '?:' operator uses constants from different enums.
V772. Calling the 'delete' operator for a void pointer will cause undefined behavior.
V773. Function exited without releasing the pointer/handle. A memory/resource leak is possible.
V774. Pointer was used after the memory was released.
V775. It is suspicious that the BSTR data type is compared using a relational operator.
V776. Potentially infinite loop. The variable in the loop exit condition does not change its value between iterations.
V777. Dangerous widening type conversion from an array of derived-class objects to a base-class pointer.
V778. Two similar code fragments. Perhaps, it is a typo and 'X' variable should be used instead of 'Y'.
V779. Unreachable code was detected. It is possible that an error is present.
V780. The object of non-passive (non-PDS) type cannot be used with the function.
V781. Value of a variable is checked after it is used. Possible error in program's logic. Check lines: N1, N2.
V782. It is pointless to compute the distance between the elements of different arrays.
V783. Possible dereference of invalid iterator 'X'.
V784. The size of the bit mask is less than the size of the first operand. This will cause the loss of the higher bits.
V785. Constant expression in switch statement.
V786. Assigning the value C to the X variable looks suspicious. The value range of the variable: [A, B].
V787. Wrong variable is probably used in the for operator as an index.
V788. Review captured variable in lambda expression.
V789. Iterators for the container, used in the range-based for loop, become invalid upon a function call.
V790. It is suspicious that the assignment operator takes an object by a non-constant reference and returns this object.
V791. The initial value of the index in the nested loop equals 'i'. Consider using 'i + 1' instead.
V792. The function located to the right of the '|' and '&' operators will be called regardless of the value of the left operand. Consider using '||' and '&&' instead.
V793. It is suspicious that the result of the statement is a part of the condition. Perhaps, this statement should have been compared with something else.
V794. The assignment operator should be protected from the case of 'this == &src'.
V795. Size of the 'time_t' type is not 64 bits. After the year 2038, the program will work incorrectly.
V796. A 'break' statement is probably missing in a 'switch' statement.
V797. The function is used as if it returned a bool type. The return value of the function should probably be compared with std::string::npos.
V798. The size of the dynamic array can be less than the number of elements in the initializer.
V799. Variable is not used after memory is allocated for it. Consider checking the use of this variable.
V1001. Variable is assigned but not used by the end of the function.
V1002. Class that contains pointers, constructor and destructor is copied by the automatically generated operator= or copy constructor.
V1003. Macro expression is dangerous or suspicious.
V1004. Pointer was used unsafely after its check for nullptr.
V1005. The resource was acquired using 'X' function but was released using incompatible 'Y' function.
V1006. Several shared_ptr objects are initialized by the same pointer. A double memory deallocation will occur.
V1007. Value from the uninitialized optional is used. It may be an error.
V1008. No more than one iteration of the loop will be performed. Consider inspecting the 'for' operator.
V1009. Check the array initialization. Only the first element is initialized explicitly.
V1010. Unchecked tainted data is used in expression.
V1011. Function execution could be deferred. Consider specifying execution policy explicitly.
V1012. The expression is always false. Overflow check is incorrect.
V1013. Suspicious subexpression in a sequence of similar comparisons.
V1014. Structures with members of real type are compared byte-wise.
V1015. Suspicious simultaneous use of bitwise and logical operators.
V1016. The value is out of range of enum values. This causes unspecified or undefined behavior.
V1017. Variable of the 'string_view' type references a temporary object, which will be removed after evaluation of an expression.
V1018. Usage of a suspicious mutex wrapper. It is probably unused, uninitialized, or already locked.
V1019. Compound assignment expression is used inside condition.
V1020. Function exited without performing epilogue actions. It is possible that there is an error.
V1021. The variable is assigned the same value on several loop iterations.
V1022. Exception was thrown by pointer. Consider throwing it by value instead.
V1023. A pointer without owner is added to the container by the 'emplace_back' method. A memory leak will occur in case of an exception.
V1024. Potential use of invalid data. The stream is checked for EOF before reading from it but is not checked after reading.
V1025. New variable with default value is created instead of 'std::unique_lock' that locks on the mutex.
V1026. The variable is incremented in the loop. Undefined behavior will occur in case of signed integer overflow.
V1027. Pointer to an object of the class is cast to unrelated class.
V1028. Possible overflow. Consider casting operands, not the result.
V1029. Numeric Truncation Error. Return value of function is written to N-bit variable.
V1030. Variable is used after it is moved.
V1031. Function is not declared. The passing of data to or from this function may be affected.
V1032. Pointer is cast to a more strictly aligned pointer type.
V1033. Variable is declared as auto in C. Its default type is int.
V1034. Do not use real-type variables as loop counters.
V1035. Only values returned from fgetpos() can be used as arguments to fsetpos().
V1036. Potentially unsafe double-checked locking.
V1037. Two or more case-branches perform the same actions.
V1038. It is suspicious that a char or string literal is added to a pointer.
V1039. Character escape is used in multicharacter literal. This causes implementation-defined behavior.
V1040. Possible typo in the spelling of a pre-defined macro name.
V1041. Class member is initialized with dangling reference.
V1042. This file is marked with copyleft license, which requires you to open the derived source code.
V1043. A global object variable is declared in the header. Multiple copies of it will be created in all translation units that include this header file.
V1044. Loop break conditions do not depend on the number of iterations.
V1045. The DllMain function throws an exception. Consider wrapping the throw operator in a try..catch block.
V1046. Unsafe usage of the 'bool' and integer types together in the operation '&='.
V1047. Lifetime of the lambda is greater than lifetime of the local variable captured by reference.
V1048. Variable 'foo' was assigned the same value.
V1049. The 'foo' include guard is already defined in the 'bar1.h' header. The 'bar2.h' header will be excluded from compilation.
V1050. Uninitialized class member is used when initializing the base class.
V1051. It is possible that an assigned variable should be checked in the next condition. Consider checking for typos.
V1052. Declaring virtual methods in a class marked as 'final' is pointless.
V1053. Calling the 'foo' virtual function in the constructor/destructor may lead to unexpected result at runtime.
V1054. Object slicing. Derived class object was copied to the base class object.
V1055. The 'sizeof' expression returns the size of the container type, not the number of elements. Consider using the 'size()' function.
V1056. The predefined identifier '__func__' always contains the string 'operator()' inside function body of the overloaded 'operator()'.
V1057. Pseudo random sequence is the same at every program run. Consider assigning the seed to a value not known at compile-time.
V1058. Nonsensical comparison of two different functions' addresses.
V1059. Macro name overrides a keyword/reserved name. This may lead to undefined behavior.
V1060. Passing 'BSTR ' to the 'SysAllocString' function may lead to incorrect object creation.
V1061. Extending 'std' or 'posix' namespace may result in undefined behavior.
V1062. Class defines a custom new or delete operator. The opposite operator must also be defined.
V1063. The modulo by 1 operation is meaningless. The result will always be zero.
V1064. The left operand of integer division is less than the right one. The result will always be zero.
V1065. Expression can be simplified: check similar operands.
V1066. The 'SysFreeString' function should be called only for objects of the 'BSTR' type.
V1067. Throwing from exception constructor may lead to unexpected behavior.
V1068. Do not define an unnamed namespace in a header file.
V1069. Do not concatenate string literals with different prefixes.
V1070. Signed value is converted to an unsigned one with subsequent expansion to a larger type in ternary operator.
V1071. Return value is not always used. Consider inspecting the 'foo' function.
V1072. Buffer needs to be securely cleared on all execution paths.
V1073. Check the following code block after the 'if' statement. Consider checking for typos.
V1074. Boundary between numeric escape sequence and string is unclear. The escape sequence ends with a letter and the next character is also a letter. Check for typos.
V1075. The function expects the file to be opened in one mode, but it was opened in different mode.
V1076. Code contains invisible characters that may alter its logic. Consider enabling the display of invisible characters in the code editor.
V1077. Constructor contains potentially uninitialized members.
V1078. An empty container is iterated. The loop will not be executed.
V1079. Parameter of 'std::stop_token' type is not used inside function's body.
V1080. Call of 'std::is_constant_evaluated' function always returns the same value.
V1081. Argument of abs() function is minimal negative value. Such absolute value can't be represented in two's complement. This leads to undefined behavior.
V1082. Function marked as 'noreturn' may return control. This will result in undefined behavior.
V1083. Signed integer overflow in arithmetic expression. This leads to undefined behavior.
V1084. The expression is always true/false. The value is out of range of enum values.
V1085. Negative value is implicitly converted to unsigned integer type in arithmetic expression.
V1086. Call of the 'Foo' function will lead to buffer underflow.
V1087. Upper bound of case range is less than its lower bound. This case may be unreachable.
V1088. No objects are passed to the 'std::scoped_lock' constructor. No locking will be performed. This can cause concurrency issues.
V1089. Waiting on condition variable without predicate. A thread can wait indefinitely or experience a spurious wake-up.
V1090. The 'std::uncaught_exception' function is deprecated since C++17 and is removed in C++20. Consider replacing this function with 'std::uncaught_exceptions'.
V1091. The pointer is cast to an integer type of a larger size. Casting pointer to a type of a larger size is an implementation-defined behavior.
V1092. Recursive function call during the static/thread_local variable initialization might occur. This may lead to undefined behavior.
V1093. The result of the right shift operation will always be 0. The right operand is greater than or equal to the number of bits in the left operand.
V1094. Conditional escape sequence in literal. Its representation is implementation-defined.
V1095. Usage of potentially invalid handle. The value should be non-negative.
V1096. Variable with static storage duration is declared inside the inline function with external linkage. This may lead to ODR violation.
V1097. Line splice results in a character sequence that matches the syntax of a universal-character-name. Using this sequence lead to undefined behavior.
V1098. The 'emplace' / 'insert' function call contains potentially dangerous move operation. Moved object can be destroyed even if there is no insertion.
V1099. Using the function of uninitialized derived class while initializing the base class will lead to undefined behavior.
V1100. Unreal Engine. Declaring a pointer to a type derived from 'UObject' in a class that is not derived from 'UObject' is dangerous. The pointer may start pointing to an invalid object after garbage collection.
V1101. Changing the default argument of a virtual function parameter in a derived class may result in unexpected behavior.
V1102. Unreal Engine. Violation of naming conventions may cause Unreal Header Tool to work incorrectly.
V1103. The values of padding bytes are unspecified. Comparing objects with padding using 'memcmp' may lead to unexpected result.
V1104. Priority of the 'M' operator is higher than that of the 'N' operator. Possible missing parentheses.
V1105. Suspicious string modification using the 'operator+='. The right operand is implicitly converted to a character type.
V1106. Qt. Class inherited from 'QObject' should contain at least one constructor that takes a pointer to 'QObject'.
V1107. Function was declared as accepting unspecified number of parameters. Consider explicitly specifying the function parameters list.
V1108. Constraint specified in a custom function annotation on the parameter is violated.
V1109. Function is deprecated. Consider switching to an equivalent newer function.
V1110. Constructor of a class inherited from 'QObject' does not use a pointer to a parent object.
V1111. The index was used without check after it was checked in previous lines.
V1112. Comparing expressions with different signedness can lead to unexpected results.
V1113. Potential resource leak. Calling the 'memset' function will change the pointer itself, not the allocated resource. Check the first and third arguments.
V1114. Suspicious use of type conversion operator when working with COM interfaces. Consider using the 'QueryInterface' member function.
V1115. Function annotated with the 'pure' attribute has side effects.
V1116. Creating an exception object without an explanatory message may result in insufficient logging.
V1117. The declared function type is cv-qualified. The behavior when using this type is undefined.
Диагностики общего назначения (General Analysis, C#)
V3001. There are identical sub-expressions to the left and to the right of the 'foo' operator.
V3002. The switch statement does not cover all values of the enum.
V3003. The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence.
V3004. The 'then' statement is equivalent to the 'else' statement.
V3005. The 'x' variable is assigned to itself.
V3006. The object was created but it is not being used. The 'throw' keyword could be missing.
V3007. Odd semicolon ';' after 'if/for/while' operator.
V3008. The 'x' variable is assigned values twice successively. Perhaps this is a mistake.
V3009. It's odd that this method always returns one and the same value of NN.
V3010. The return value of function 'Foo' is required to be utilized.
V3011. Two opposite conditions were encountered. The second condition is always false.
V3012. The '?:' operator, regardless of its conditional expression, always returns one and the same value.
V3013. It is odd that the body of 'Foo_1' function is fully equivalent to the body of 'Foo_2' function.
V3014. It is likely that a wrong variable is being incremented inside the 'for' operator. Consider reviewing 'X'.
V3015. It is likely that a wrong variable is being compared inside the 'for' operator. Consider reviewing 'X'.
V3016. The variable 'X' is being used for this loop and for the outer loop.
V3017. A pattern was detected: A || (A && ...). The expression is excessive or contains a logical error.
V3018. Consider inspecting the application's logic. It's possible that 'else' keyword is missing.
V3019. It is possible that an incorrect variable is compared with null after type conversion using 'as' keyword.
V3020. An unconditional 'break/continue/return/goto' within a loop.
V3021. There are two 'if' statements with identical conditional expressions. The first 'if' statement contains method return. This means that the second 'if' statement is senseless.
V3022. Expression is always true/false.
V3023. Consider inspecting this expression. The expression is excessive or contains a misprint.
V3024. An odd precise comparison. Consider using a comparison with defined precision: Math.Abs(A - B) < Epsilon or Math.Abs(A - B) > Epsilon.
V3025. Incorrect format. Consider checking the N format items of the 'Foo' function.
V3026. The constant NN is being utilized. The resulting value could be inaccurate. Consider using the KK constant.
V3027. The variable was utilized in the logical expression before it was verified against null in the same logical expression.
V3028. Consider inspecting the 'for' operator. Initial and final values of the iterator are the same.
V3029. The conditional expressions of the 'if' statements situated alongside each other are identical.
V3030. Recurring check. This condition was already verified in previous line.
V3031. An excessive check can be simplified. The operator '||' operator is surrounded by opposite expressions 'x' and '!x'.
V3032. Waiting on this expression is unreliable, as compiler may optimize some of the variables. Use volatile variable(s) or synchronization primitives to avoid this.
V3033. It is possible that this 'else' branch must apply to the previous 'if' statement.
V3034. Consider inspecting the expression. Probably the '!=' should be used here.
V3035. Consider inspecting the expression. Probably the '+=' should be used here.
V3036. Consider inspecting the expression. Probably the '-=' should be used here.
V3037. An odd sequence of assignments of this kind: A = B; B = A;
V3038. The argument was passed to method several times. It is possible that another argument should be passed instead.
V3039. Consider inspecting the 'Foo' function call. Defining an absolute path to the file or directory is considered a poor style.
V3040. The expression contains a suspicious mix of integer and real types.
V3041. The expression was implicitly cast from integer type to real type. Consider utilizing an explicit type cast to avoid the loss of a fractional part.
V3042. Possible NullReferenceException. The '?.' and '.' operators are used for accessing members of the same object.
V3043. The code's operational logic does not correspond with its formatting.
V3044. WPF: writing and reading are performed on a different Dependency Properties.
V3045. WPF: the names of the property registered for DependencyProperty, and of the property used to access it, do not correspond with each other.
V3046. WPF: the type registered for DependencyProperty does not correspond with the type of the property used to access it.
V3047. WPF: A class containing registered property does not correspond with a type that is passed as the ownerType.type.
V3048. WPF: several Dependency Properties are registered with a same name within the owner type.
V3049. WPF: readonly field of 'DependencyProperty' type is not initialized.
V3050. Possibly an incorrect HTML. The </XX> closing tag was encountered, while the </YY> tag was expected.
V3051. An excessive type cast or check. The object is already of the same type.
V3052. The original exception object was swallowed. Stack of original exception could be lost.
V3053. An excessive expression. Examine the substrings "abc" and "abcd".
V3054. Potentially unsafe double-checked locking. Use volatile variable(s) or synchronization primitives to avoid this.
V3055. Suspicious assignment inside the condition expression of 'if/while/for' operator.
V3056. Consider reviewing the correctness of 'X' item's usage.
V3057. Function receives an odd argument.
V3058. An item with the same key has already been added.
V3059. Consider adding '[Flags]' attribute to the enum.
V3060. A value of variable is not modified. Consider inspecting the expression. It is possible that other value should be present instead of '0'.
V3061. Parameter 'A' is always rewritten in method body before being used.
V3062. An object is used as an argument to its own method. Consider checking the first actual argument of the 'Foo' method.
V3063. A part of conditional expression is always true/false if it is evaluated.
V3064. Division or mod division by zero.
V3065. Parameter is not utilized inside method's body.
V3066. Possible incorrect order of arguments passed to method.
V3067. It is possible that 'else' block was forgotten or commented out, thus altering the program's operation logics.
V3068. Calling overrideable class member from constructor is dangerous.
V3069. It's possible that the line was commented out improperly, thus altering the program's operation logics.
V3070. Uninitialized variables are used when initializing the 'A' variable.
V3071. The object is returned from inside 'using' block. 'Dispose' will be invoked before exiting method.
V3072. The 'A' class containing IDisposable members does not itself implement IDisposable.
V3073. Not all IDisposable members are properly disposed. Call 'Dispose' when disposing 'A' class.
V3074. The 'A' class contains 'Dispose' method. Consider making it implement 'IDisposable' interface.
V3075. The operation is executed 2 or more times in succession.
V3076. Comparison with 'double.NaN' is meaningless. Use 'double.IsNaN()' method instead.
V3077. Property setter / event accessor does not utilize its 'value' parameter.
V3078. Sorting keys priority will be reversed relative to the order of 'OrderBy' method calls. Perhaps, 'ThenBy' should be used instead.
V3079. The 'ThreadStatic' attribute is applied to a non-static 'A' field and will be ignored.
V3080. Possible null dereference.
V3081. The 'X' counter is not used inside a nested loop. Consider inspecting usage of 'Y' counter.
V3082. The 'Thread' object is created but is not started. It is possible that a call to 'Start' method is missing.
V3083. Unsafe invocation of event, NullReferenceException is possible. Consider assigning event to a local variable before invoking it.
V3084. Anonymous function is used to unsubscribe from event. No handlers will be unsubscribed, as a separate delegate instance is created for each anonymous function declaration.
V3085. The name of 'X' field/property in a nested type is ambiguous. The outer type contains static field/property with identical name.
V3086. Variables are initialized through the call to the same function. It's probably an error or un-optimized code.
V3087. Type of variable enumerated in 'foreach' is not guaranteed to be castable to the type of collection's elements.
V3088. The expression was enclosed by parentheses twice: ((expression)). One pair of parentheses is unnecessary or misprint is present.
V3089. Initializer of a field marked by [ThreadStatic] attribute will be called once on the first accessing thread. The field will have default value on different threads.
V3090. Unsafe locking on an object.
V3091. Empirical analysis. It is possible that a typo is present inside the string literal. The 'foo' word is suspicious.
V3092. Range intersections are possible within conditional expressions.
V3093. The operator evaluates both operands. Perhaps a short-circuit operator should be used instead.
V3094. Possible exception when deserializing type. The Ctor(SerializationInfo, StreamingContext) constructor is missing.
V3095. The object was used before it was verified against null. Check lines: N1, N2.
V3096. Possible exception when serializing type. [Serializable] attribute is missing.
V3097. Possible exception: type marked by [Serializable] contains non-serializable members not marked by [NonSerialized].
V3098. The 'continue' operator will terminate 'do { ... } while (false)' loop because the condition is always false.
V3099. Not all the members of type are serialized inside 'GetObjectData' method.
V3100. NullReferenceException is possible. Unhandled exceptions in destructor lead to termination of runtime.
V3101. Potential resurrection of 'this' object instance from destructor. Without re-registering for finalization, destructor will not be called a second time on resurrected object.
V3102. Suspicious access to element by a constant index inside a loop.
V3103. A private Ctor(SerializationInfo, StreamingContext) constructor in unsealed type will not be accessible when deserializing derived types.
V3104. The 'GetObjectData' implementation in unsealed type is not virtual, incorrect serialization of derived type is possible.
V3105. The 'a' variable was used after it was assigned through null-conditional operator. NullReferenceException is possible.
V3106. Possibly index is out of bound.
V3107. Identical expression to the left and to the right of compound assignment.
V3108. It is not recommended to return null or throw exceptions from 'ToString()' method.
V3109. The same sub-expression is present on both sides of the operator. The expression is incorrect or it can be simplified.
V3110. Possible infinite recursion.
V3111. Checking value for null will always return false when generic type is instantiated with a value type.
V3112. An abnormality within similar comparisons. It is possible that a typo is present inside the expression.
V3113. Consider inspecting the loop expression. It is possible that different variables are used inside initializer and iterator.
V3114. IDisposable object is not disposed before method returns.
V3115. It is not recommended to throw exceptions from 'Equals(object obj)' method.
V3116. Consider inspecting the 'for' operator. It's possible that the loop will be executed incorrectly or won't be executed at all.
V3117. Constructor parameter is not used.
V3118. A component of TimeSpan is used, which does not represent full time interval. Possibly 'Total*' value was intended instead.
V3119. Calling a virtual (overridden) event may lead to unpredictable behavior. Consider implementing event accessors explicitly or use 'sealed' keyword.
V3120. Potentially infinite loop. The variable from the loop exit condition does not change its value between iterations.
V3121. An enumeration was declared with 'Flags' attribute, but does not set any initializers to override default values.
V3122. Uppercase (lowercase) string is compared with a different lowercase (uppercase) string.
V3123. Perhaps the '??' operator works in a different way than it was expected. Its priority is lower than priority of other operators in its left part.
V3124. Appending an element and checking for key uniqueness is performed on two different variables.
V3125. The object was used after it was verified against null. Check lines: N1, N2.
V3126. Type implementing IEquatable<T> interface does not override 'GetHashCode' method.
V3127. Two similar code fragments were found. Perhaps, this is a typo and 'X' variable should be used instead of 'Y'.
V3128. The field (property) is used before it is initialized in constructor.
V3129. The value of the captured variable will be overwritten on the next iteration of the loop in each instance of anonymous function that captures it.
V3130. Priority of the '&&' operator is higher than that of the '||' operator. Possible missing parentheses.
V3131. The expression is checked for compatibility with the type 'A', but is casted to the 'B' type.
V3132. A terminal null is present inside a string. The '\0xNN' characters were encountered. Probably meant: '\xNN'.
V3133. Postfix increment/decrement is senseless because this variable is overwritten.
V3134. Shift by N bits is greater than the size of type.
V3135. The initial value of the index in the nested loop equals 'i'. Consider using 'i + 1' instead.
V3136. Constant expression in switch statement.
V3137. The variable is assigned but is not used by the end of the function.
V3138. String literal contains potential interpolated expression.
V3139. Two or more case-branches perform the same actions.
V3140. Property accessors use different backing fields.
V3141. Expression under 'throw' is a potential null, which can lead to NullReferenceException.
V3142. Unreachable code detected. It is possible that an error is present.
V3143. The 'value' parameter is rewritten inside a property setter, and is not used after that.
V3144. This file is marked with copyleft license, which requires you to open the derived source code.
V3145. Unsafe dereference of a WeakReference target. The object could have been garbage collected before the 'Target' property was accessed.
V3146. Possible null dereference. A method can return default null value.
V3147. Non-atomic modification of volatile variable.
V3148. Casting potential 'null' value to a value type can lead to NullReferenceException.
V3149. Dereferencing the result of 'as' operator can lead to NullReferenceException.
V3150. Loop break conditions do not depend on the number of iterations.
V3151. Potential division by zero. Variable was used as a divisor before it was compared to zero. Check lines: N1, N2.
V3152. Potential division by zero. Variable was compared to zero before it was used as a divisor. Check lines: N1, N2.
V3153. Dereferencing the result of null-conditional access operator can lead to NullReferenceException.
V3154. The 'a % b' expression always evaluates to 0.
V3155. The expression is incorrect or it can be simplified.
V3156. The argument of the method is not expected to be null.
V3157. Suspicious division. Absolute value of the left operand is less than the right operand.
V3158. Suspicious division. Absolute values of both operands are equal.
V3159. Modified value of the operand is not used after the increment/decrement operation.
V3160. Argument of incorrect type is passed to the 'Enum.HasFlag' method.
V3161. Comparing value type variables with 'ReferenceEquals' is incorrect because compared values will be boxed.
V3162. Suspicious return of an always empty collection.
V3163. An exception handling block does not contain any code.
V3164. Exception classes should be publicly accessible.
V3165. The expression of the 'char' type is passed as an argument of the 'A' type whereas similar overload with the string parameter exists.
V3166. Calling the 'SingleOrDefault' method may lead to 'InvalidOperationException'.
V3167. Parameter of 'CancellationToken' type is not used inside function's body.
V3168. Awaiting on expression with potential null value can lead to throwing of 'NullReferenceException'.
V3169. Suspicious return of a local reference variable which always equals null.
V3170. Both operands of the '??' operator are identical.
V3171. Potentially negative value is used as the size of an array.
V3172. The 'if/if-else/for/while/foreach' statement and code block after it are not related. Inspect the program's logic.
V3173. Possible incorrect initialization of variable. Consider verifying the initializer.
V3174. Suspicious subexpression in a sequence of similar comparisons.
V3175. Locking operations must be performed on the same thread. Using 'await' in a critical section may lead to a lock being released on a different thread.
V3176. The '&=' or '|=' operator is redundant because the right operand is always true/false.
V3177. Logical literal belongs to second operator with a higher priority. It is possible literal was intended to belong to '??' operator instead.
V3178. Calling method or accessing property of potentially disposed object may result in exception.
V3179. Calling element access method for potentially empty collection may result in exception.
V3180. The 'HasFlag' method always returns 'true' because the value '0' is passed as its argument.
V3181. The result of '&' operator is '0' because one of the operands is '0'.
V3182. The result of '&' operator is always '0'.
V3183. Code formatting implies that the statement should not be a part of the 'then' branch that belongs to the preceding 'if' statement.
V3184. The argument's value is greater than the size of the collection. Passing the value into the 'Foo' method will result in an exception.
V3185. An argument containing a file path could be mixed up with another argument. The other function parameter expects a file path instead.
V3186. The arguments violate the bounds of collection. Passing these values into the method will result in an exception.
V3187. Parts of an SQL query are not delimited by any separators or whitespaces. Executing this query may lead to an error.
V3188. Unity Engine. The value of an expression is a potentially destroyed Unity object or null. Member invocation on this value may lead to an exception.
V3189. The assignment to a member of the readonly field will have no effect when the field is of a value type. Consider restricting the type parameter to reference types.
V3190. Concurrent modification of a variable may lead to errors.
V3191. Iteration through collection makes no sense because it is always empty.
V3192. Type member is used in the 'GetHashCode' method but is missing from the 'Equals' method.
V3193. Data processing results are potentially used before asynchronous output reading is complete. Consider calling 'WaitForExit' overload with no arguments before using the data.
V3194. Calling 'OfType' for collection will return an empty collection. It is not possible to cast collection elements to the type parameter.
V3195. Collection initializer implicitly calls 'Add' method. Using it on member with default value of null will result in null dereference exception.
V3196. Parameter is not utilized inside the method body, but an identifier with a similar name is used inside the same method.
V3197. The compared value inside the 'Object.Equals' override is converted to a different type that does not contain the override.
V3198. The variable is assigned the same value that it already holds.
V3199. The index from end operator is used with the value that is less than or equal to zero. Collection index will be out of bounds.
V3200. Possible overflow. The expression will be evaluated before casting. Consider casting one of the operands instead.
V3201. Return value is not always used. Consider inspecting the 'foo' method.
V3202. Unreachable code detected. The 'case' value is out of the range of the match expression.
V3203. Method parameter is not used.
V3204. The expression is always false due to implicit type conversion. Overflow check is incorrect.
V3205. Unity Engine. Improper creation of 'MonoBehaviour' or 'ScriptableObject' object using the 'new' operator. Use the special object creation method instead.
V3206. Unity Engine. A direct call to the coroutine-like method will not start it. Use the 'StartCoroutine' method instead.
V3207. The 'not A or B' logical pattern may not work as expected. The 'not' pattern is matched only to the first expression from the 'or' pattern.
V3208. Unity Engine. Using 'WeakReference' with 'UnityEngine.Object' is not supported. GC will not reclaim the object's memory because it is linked to a native object.
V3209. Unity Engine. Using await on 'Awaitable' object more than once can lead to exception or deadlock, as such objects are returned to the pool after being awaited.
V3210. Unity Engine. Unity does not allow removing the 'Transform' component using 'Destroy' or 'DestroyImmediate' methods. The method call will be ignored.
Диагностики общего назначения (General Analysis, Java)
V6001. There are identical sub-expressions to the left and to the right of the 'foo' operator.
V6002. The switch statement does not cover all values of the enum.
V6003. The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence.
V6004. The 'then' statement is equivalent to the 'else' statement.
V6005. The 'x' variable is assigned to itself.
V6006. The object was created but it is not being used. The 'throw' keyword could be missing.
V6007. Expression is always true/false.
V6008. Potential null dereference.
V6009. Function receives an odd argument.
V6010. The return value of function 'Foo' is required to be utilized.
V6011. The expression contains a suspicious mix of integer and real types.
V6012. The '?:' operator, regardless of its conditional expression, always returns one and the same value.
V6013. Comparison of arrays, strings, collections by reference. Possibly an equality comparison was intended.
V6014. It's odd that this method always returns one and the same value of NN.
V6015. Consider inspecting the expression. Probably the '!='/'-='/'+=' should be used here.
V6016. Suspicious access to element by a constant index inside a loop.
V6017. The 'X' counter is not used inside a nested loop. Consider inspecting usage of 'Y' counter.
V6018. Constant expression in switch statement.
V6019. Unreachable code detected. It is possible that an error is present.
V6020. Division or mod division by zero.
V6021. The value is assigned to the 'x' variable but is not used.
V6022. Parameter is not used inside method's body.
V6023. Parameter 'A' is always rewritten in method body before being used.
V6024. The 'continue' operator will terminate 'do { ... } while (false)' loop because the condition is always false.
V6025. Possibly index is out of bound.
V6026. This value is already assigned to the 'b' variable.
V6027. Variables are initialized through the call to the same function. It's probably an error or un-optimized code.
V6028. Identical expression to the left and to the right of compound assignment.
V6029. Possible incorrect order of arguments passed to method.
V6030. The function located to the right of the '|' and '&' operators will be called regardless of the value of the left operand. Consider using '||' and '&&' instead.
V6031. The variable 'X' is being used for this loop and for the outer loop.
V6032. It is odd that the body of 'Foo_1' function is fully equivalent to the body of 'Foo_2' function.
V6033. An item with the same key has already been added.
V6034. Shift by N bits is inconsistent with the size of type.
V6035. Double negation is present in the expression: !!x.
V6036. The value from the uninitialized optional is used.
V6037. An unconditional 'break/continue/return/goto' within a loop.
V6038. Comparison with 'double.NaN' is meaningless. Use 'double.isNaN()' method instead.
V6039. There are two 'if' statements with identical conditional expressions. The first 'if' statement contains method return. This means that the second 'if' statement is senseless.
V6040. The code's operational logic does not correspond with its formatting.
V6041. Suspicious assignment inside the conditional expression of 'if/while/do...while' statement.
V6042. The expression is checked for compatibility with type 'A', but is cast to type 'B'.
V6043. Consider inspecting the 'for' operator. Initial and final values of the iterator are the same.
V6044. Postfix increment/decrement is senseless because this variable is overwritten.
V6045. Suspicious subexpression in a sequence of similar comparisons.
V6046. Incorrect format. Consider checking the N format items of the 'Foo' function.
V6047. It is possible that this 'else' branch must apply to the previous 'if' statement.
V6048. This expression can be simplified. One of the operands in the operation equals NN. Probably it is a mistake.
V6049. Classes that define 'equals' method must also define 'hashCode' method.
V6050. Class initialization cycle is present.
V6051. Use of jump statements in 'finally' block can lead to the loss of unhandled exceptions.
V6052. Calling an overridden method in parent-class constructor may lead to use of uninitialized data.
V6053. Collection is modified while iteration is in progress. ConcurrentModificationException may occur.
V6054. Classes should not be compared by their name.
V6055. Expression inside assert statement can change object's state.
V6056. Implementation of 'compareTo' overloads the method from a base class. Possibly, an override was intended.
V6057. Consider inspecting this expression. The expression is excessive or contains a misprint.
V6058. Comparing objects of incompatible types.
V6059. Odd use of special character in regular expression. Possibly, it was intended to be escaped.
V6060. The reference was used before it was verified against null.
V6061. The used constant value is represented by an octal form.
V6062. Possible infinite recursion.
V6063. Odd semicolon ';' after 'if/for/while' operator.
V6064. Suspicious invocation of Thread.run().
V6065. A non-serializable class should not be serialized.
V6066. Passing objects of incompatible types to the method of collection.
V6067. Two or more case-branches perform the same actions.
V6068. Suspicious use of BigDecimal class.
V6069. Unsigned right shift assignment of negative 'byte' / 'short' value.
V6070. Unsafe synchronization on an object.
V6071. This file is marked with copyleft license, which requires you to open the derived source code.
V6072. Two similar code fragments were found. Perhaps, this is a typo and 'X' variable should be used instead of 'Y'.
V6073. It is not recommended to return null or throw exceptions from 'toString' / 'clone' methods.
V6074. Non-atomic modification of volatile variable.
V6075. The signature of method 'X' does not conform to serialization requirements.
V6076. Recurrent serialization will use cached object state from first serialization.
V6077. A suspicious label is present inside a switch(). It is possible that these are misprints and 'default:' label should be used instead.
V6078. Potential Java SE API compatibility issue.
V6079. Value of variable is checked after use. Potential logical error is present. Check lines: N1, N2.
V6080. Consider checking for misprints. It's possible that an assigned variable should be checked in the next condition.
V6081. Annotation that does not have 'RUNTIME' retention policy will not be accessible through Reflection API.
V6082. Unsafe double-checked locking.
V6083. Serialization order of fields should be preserved during deserialization.
V6084. Suspicious return of an always empty collection.
V6085. An abnormality within similar comparisons. It is possible that a typo is present inside the expression.
V6086. Suspicious code formatting. 'else' keyword is probably missing.
V6087. InvalidClassException may occur during deserialization.
V6088. Result of this expression will be implicitly cast to 'Type'. Check if program logic handles it correctly.
V6089. It's possible that the line was commented out improperly, thus altering the program's operation logics.
V6090. Field 'A' is being used before it was initialized.
V6091. Suspicious getter/setter implementation. The 'A' field should probably be returned/assigned instead.
V6092. A resource is returned from try-with-resources statement. It will be closed before the method exits.
V6093. Automatic unboxing of a variable may cause NullPointerException.
V6094. The expression was implicitly cast from integer type to real type. Consider utilizing an explicit type cast to avoid the loss of a fractional part.
V6095. Thread.sleep() inside synchronized block/method may cause decreased performance.
V6096. An odd precise comparison. Consider using a comparison with defined precision: Math.abs(A - B) < Epsilon or Math.abs(A - B) > Epsilon.
V6097. Lowercase 'L' at the end of a long literal can be mistaken for '1'.
V6098. The method does not override another method from the base class.
V6099. The initial value of the index in the nested loop equals 'i'. Consider using 'i + 1' instead.
V6100. An object is used as an argument to its own method. Consider checking the first actual argument of the 'Foo' method.
V6101. compareTo()-like methods can return not only the values -1, 0 and 1, but any values.
V6102. Inconsistent synchronization of a field. Consider synchronizing the field on all usages.
V6103. Ignored InterruptedException could lead to delayed thread shutdown.
V6104. A pattern was detected: A || (A && ...). The expression is excessive or contains a logical error.
V6105. Consider inspecting the loop expression. It is possible that different variables are used inside initializer and iterator.
V6106. Casting expression to 'X' type before implicitly casting it to other type may be excessive or incorrect.
V6107. The constant NN is being utilized. The resulting value could be inaccurate. Consider using the KK constant.
V6108. Do not use real-type variables in 'for' loop counters.
V6109. Potentially predictable seed is used in pseudo-random number generator.
V6110. Using an environment variable could be unsafe or unreliable. Consider using trusted system property instead
V6111. Potentially negative value is used as the size of an array.
V6112. Calling the 'getClass' method repeatedly or on the value of the '.class' literal will always return the instance of the 'Class<Class>' type.
V6113. Suspicious division. Absolute value of the left operand is less than the value of the right operand.
V6114. The 'A' class containing Closeable members does not release the resources that the field is holding.
V6115. Not all Closeable members are released inside the 'close' method.
V6116. The class does not implement the Closeable interface, but it contains the 'close' method that releases resources.
V6117. Possible overflow. The expression will be evaluated before casting. Consider casting one of the operands instead.
V6118. The original exception object was swallowed. Cause of original exception could be lost.
V6119. The result of '&' operator is always '0'.
V6120. The result of the '&' operator is '0' because one of the operands is '0'.
V6121. Return value is not always used. Consider inspecting the 'foo' method.
V6122. The 'Y' (week year) pattern is used for date formatting. Check whether the 'y' (year) pattern was intended instead.
V6123. Modified value of the operand is not used after the increment/decrement operation.
V6124. Converting an integer literal to the type with a smaller value range will result in overflow.
V6125. Calling the 'wait', 'notify', and 'notifyAll' methods outside of synchronized context will lead to 'IllegalMonitorStateException'.
Микрооптимизации (C++)
V801. Decreased performance. It is better to redefine the N function argument as a reference. Consider replacing 'const T' with 'const .. &T' / 'const .. *T'.
V802. On 32-bit/64-bit platform, structure size can be reduced from N to K bytes by rearranging the fields according to their sizes in decreasing order.
V803. Decreased performance. It is more effective to use the prefix form of ++it. Replace iterator++ with ++iterator.
V804. Decreased performance. The 'Foo' function is called twice in the specified expression to calculate length of the same string.
V805. Decreased performance. It is inefficient to identify an empty string by using 'strlen(str) > 0' construct. A more efficient way is to check: str[0] != '\0'.
V806. Decreased performance. The expression of strlen(MyStr.c_str()) kind can be rewritten as MyStr.length().
V807. Decreased performance. Consider creating a pointer/reference to avoid using the same expression repeatedly.
V808. An array/object was declared but was not utilized.
V809. Verifying that a pointer value is not NULL is not required. The 'if (ptr != NULL)' check can be removed.
V810. Decreased performance. The 'A' function was called several times with identical arguments. The result should possibly be saved to a temporary variable, which then could be used while calling the 'B' function.
V811. Decreased performance. Excessive type casting: string -> char * -> string.
V812. Decreased performance. Ineffective use of the 'count' function. It can possibly be replaced by the call to the 'find' function.
V813. Decreased performance. The argument should probably be rendered as a constant pointer/reference.
V814. Decreased performance. The 'strlen' function was called multiple times inside the body of a loop.
V815. Decreased performance. Consider replacing the expression 'AA' with 'BB'.
V816. It is more efficient to catch exception by reference rather than by value.
V817. It is more efficient to search for 'X' character rather than a string.
V818. It is more efficient to use an initialization list rather than an assignment operator.
V819. Decreased performance. Memory is allocated and released multiple times inside the loop body.
V820. The variable is not used after copying. Copying can be replaced with move/swap for optimization.
V821. The variable can be constructed in a lower level scope.
V822. Decreased performance. A new object is created, while a reference to an object is expected.
V823. Decreased performance. Object may be created in-place in a container. Consider replacing methods: 'insert' -> 'emplace', 'push_*' -> 'emplace_*'.
V824. It is recommended to use the 'make_unique/make_shared' function to create smart pointers.
V825. Expression is equivalent to moving one unique pointer to another. Consider using 'std::move' instead.
V826. Consider replacing standard container with a different one.
V827. Maximum size of a vector is known at compile time. Consider pre-allocating it by calling reserve(N).
V828. Decreased performance. Moving an object in a return statement prevents copy elision.
V829. Lifetime of the heap-allocated variable is limited to the current function's scope. Consider allocating it on the stack instead.
V830. Decreased performance. Consider replacing the use of 'std::optional::value()' with either the '*' or '->' operator.
V831. Decreased performance. Consider replacing the call to the 'at()' method with the 'operator[]'.
V832. It's better to use '= default;' syntax instead of empty body.
V833. Using 'std::move' function's with const object disables move semantics.
V834. Incorrect type of a loop variable. This leads to the variable binding to a temporary object instead of a range element.
V835. Passing cheap-to-copy argument by reference may lead to decreased performance.
V836. Expression's value is copied at the variable declaration. The variable is never modified. Consider declaring it as a reference.
V837. The 'emplace' / 'insert' function does not guarantee that arguments will not be copied or moved if there is no insertion. Consider using the 'try_emplace' function.
V838. Temporary object is constructed during lookup in ordered associative container. Consider using a container with heterogeneous lookup to avoid construction of temporary objects.
V839. Function returns a constant value. This may interfere with move semantics.
Микрооптимизации (C#)
V4001. Unity Engine. Boxing inside a frequently called method may decrease performance.
V4002. Unity Engine. Avoid storing consecutive concatenations inside a single string in performance-sensitive context. Consider using StringBuilder to improve performance.
V4003. Unity Engine. Avoid capturing variable in performance-sensitive context. This can lead to decreased performance.
V4004. Unity Engine. New array object is returned from method or property. Using such member in performance-sensitive context can lead to decreased performance.
V4005. Unity Engine. The expensive operation is performed inside method or property. Using such member in performance-sensitive context can lead to decreased performance.
V4006. Unity Engine. Multiple operations between complex and numeric values. Prioritizing operations between numeric values can optimize execution time.
V4007. Unity Engine. Avoid creating and destroying UnityEngine objects in performance-sensitive context. Consider activating and deactivating them instead.
Диагностика 64-битных ошибок (Viva64, C++)
V101. Implicit assignment type conversion to memsize type.
V102. Usage of non memsize type for pointer arithmetic.
V103. Implicit type conversion from memsize type to 32-bit type.
V104. Implicit type conversion to memsize type in an arithmetic expression.
V105. N operand of '?:' operation: implicit type conversion to memsize type.
V106. Implicit type conversion N argument of function 'foo' to memsize type.
V107. Implicit type conversion N argument of function 'foo' to 32-bit type.
V108. Incorrect index type: 'foo[not a memsize-type]'. Use memsize type instead.
V109. Implicit type conversion of return value to memsize type.
V110. Implicit type conversion of return value from memsize type to 32-bit type.
V111. Call of function 'foo' with variable number of arguments. N argument has memsize type.
V112. Dangerous magic number N used.
V113. Implicit type conversion from memsize to double type or vice versa.
V114. Dangerous explicit type pointer conversion.
V115. Memsize type is used for throw.
V116. Memsize type is used for catch.
V117. Memsize type is used in the union.
V118. malloc() function accepts a dangerous expression in the capacity of an argument.
V119. More than one sizeof() operator is used in one expression.
V120. Member operator[] of object 'foo' is declared with 32-bit type argument, but is called with memsize type argument.
V121. Implicit conversion of the type of 'new' operator's argument to size_t type.
V122. Memsize type is used in the struct/class.
V123. Allocation of memory by the pattern "(X*)malloc(sizeof(Y))" where the sizes of X and Y types are not equal.
V124. Function 'Foo' writes/reads 'N' bytes. The alignment rules and type sizes have been changed. Consider reviewing this value.
V125. It is not advised to declare type 'T' as 32-bit type.
V126. Be advised that the size of the type 'long' varies between LLP64/LP64 data models.
V127. An overflow of the 32-bit variable is possible inside a long cycle which utilizes a memsize-type loop counter.
V128. A variable of the memsize type is read from a stream. Consider verifying the compatibility of 32 and 64 bit versions of the application in the context of a stored data.
V201. Explicit conversion from 32-bit integer type to memsize type.
V202. Explicit conversion from memsize type to 32-bit integer type.
V203. Explicit type conversion from memsize to double type or vice versa.
V204. Explicit conversion from 32-bit integer type to pointer type.
V205. Explicit conversion of pointer type to 32-bit integer type.
V206. Explicit conversion from 'void *' to 'int *'.
V207. A 32-bit variable is utilized as a reference to a pointer. A write outside the bounds of this variable may occur.
V220. Suspicious sequence of types castings: memsize -> 32-bit integer -> memsize.
V221. Suspicious sequence of types castings: pointer -> memsize -> 32-bit integer.
V301. Unexpected function overloading behavior. See N argument of function 'foo' in derived class 'derived' and base class 'base'.
V302. Member operator[] of 'foo' class has a 32-bit type argument. Use memsize-type here.
V303. The function is deprecated in the Win64 system. It is safer to use the 'foo' function.
Реализовано по запросам пользователей (C++)
V2001. Consider using the extended version of the 'foo' function here.
V2002. Consider using the 'Ptr' version of the 'foo' function here.
V2003. Explicit conversion from 'float/double' type to signed integer type.
V2004. Explicit conversion from 'float/double' type to unsigned integer type.
V2005. C-style explicit type casting is utilized. Consider using: static_cast/const_cast/reinterpret_cast.
V2006. Implicit type conversion from enum type to integer type.
V2007. This expression can be simplified. One of the operands in the operation equals NN. Probably it is a mistake.
V2008. Cyclomatic complexity: NN. Consider refactoring the 'Foo' function.
V2009. Consider passing the 'Foo' argument as a pointer/reference to const.
V2010. Handling of two different exception types is identical.
V2011. Consider inspecting signed and unsigned function arguments. See NN argument of function 'Foo' in derived class and base class.
V2012. Possibility of decreased performance. It is advised to pass arguments to std::unary_function/std::binary_function template as references.
V2013. Consider inspecting the correctness of handling the N argument in the 'Foo' function.
V2014. Don't use terminating functions in library code.
V2015. An identifier declared in an inner scope should not hide an identifier in an outer scope.
V2016. Consider inspecting the function call. The function was annotated as dangerous.
V2017. String literal is identical to variable name. It is possible that the variable should be used instead of the string literal.
V2018. Cast should not remove 'const' qualifier from the type that is pointed to by a pointer or a reference.
V2019. Cast should not remove 'volatile' qualifier from the type that is pointed to by a pointer or a reference.
V2020. The loop body contains the 'break;' / 'continue;' statement. This may complicate the control flow.
V2021. Using assertions may cause the abnormal program termination in undesirable contexts.
V2022. Implicit type conversion from integer type to enum type.
Cтандарт MISRA
V2501. MISRA. Octal constants should not be used.
V2502. MISRA. The 'goto' statement should not be used.
V2503. MISRA. Implicitly specified enumeration constants should be unique – consider specifying non-unique constants explicitly.
V2504. MISRA. Size of an array is not specified.
V2505. MISRA. The 'goto' statement shouldn't jump to a label declared earlier.
V2506. MISRA. A function should have a single point of exit at the end.
V2507. MISRA. The body of a loop\conditional statement should be enclosed in braces.
V2508. MISRA. The function with the 'atof/atoi/atol/atoll' name should not be used.
V2509. MISRA. The function with the 'abort/exit/getenv/system' name should not be used.
V2510. MISRA. The function with the 'qsort/bsearch' name should not be used.
V2511. MISRA. Memory allocation and deallocation functions should not be used.
V2512. MISRA. The macro with the 'setjmp' name and the function with the 'longjmp' name should not be used.
V2513. MISRA. Unbounded functions performing string operations should not be used.
V2514. MISRA. Unions should not be used.
V2515. MISRA. Declaration should contain no more than two levels of pointer nesting.
V2516. MISRA. The 'if' ... 'else if' construct should be terminated with an 'else' statement.
V2517. MISRA. Literal suffixes should not contain lowercase characters.
V2518. MISRA. The 'default' label should be either the first or the last label of a 'switch' statement.
V2519. MISRA. Every 'switch' statement should have a 'default' label, which, in addition to the terminating 'break' statement, should contain either a statement or a comment.
V2520. MISRA. Every switch-clause should be terminated by an unconditional 'break' or 'throw' statement.
V2521. MISRA. Only the first member of enumerator list should be explicitly initialized, unless all members are explicitly initialized.
V2522. MISRA. The 'switch' statement should have 'default' as the last label.
V2523. MISRA. All integer constants of unsigned type should have 'u' or 'U' suffix.
V2524. MISRA. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement.
V2525. MISRA. Every 'switch' statement should contain non-empty switch-clauses.
V2526. MISRA. The functions from time.h/ctime should not be used.
V2527. MISRA. A switch-expression should not have Boolean type. Consider using of 'if-else' construct.
V2528. MISRA. The comma operator should not be used.
V2529. MISRA. Any label should be declared in the same block as 'goto' statement or in any block enclosing it.
V2530. MISRA. Any loop should be terminated with no more than one 'break' or 'goto' statement.
V2531. MISRA. Expression of essential type 'foo' should not be explicitly cast to essential type 'bar'.
V2532. MISRA. String literal should not be assigned to object unless it has type of pointer to const-qualified char.
V2533. MISRA. C-style and functional notation casts should not be performed.
V2534. MISRA. The loop counter should not have floating-point type.
V2535. MISRA. Unreachable code should not be present in the project.
V2536. MISRA. Function should not contain labels not used by any 'goto' statements.
V2537. MISRA. Functions should not have unused parameters.
V2538. MISRA. The value of uninitialized variable should not be used.
V2539. MISRA. Class destructor should not exit with an exception.
V2540. MISRA. Arrays should not be partially initialized.
V2541. MISRA. Function should not be declared implicitly.
V2542. MISRA. Function with a non-void return type should return a value from all exit paths.
V2543. MISRA. Value of the essential character type should be used appropriately in the addition/subtraction operations.
V2544. MISRA. The values used in expressions should have appropriate essential types.
V2545. MISRA. Conversion between pointers of different object types should not be performed.
V2546. MISRA. Expression resulting from the macro expansion should be surrounded by parentheses.
V2547. MISRA. The return value of non-void function should be used.
V2548. MISRA. The address of an object with local scope should not be passed out of its scope.
V2549. MISRA. Pointer to FILE should not be dereferenced.
V2550. MISRA. Floating-point values should not be tested for equality or inequality.
V2551. MISRA. Variable should be declared in a scope that minimizes its visibility.
V2552. MISRA. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration.
V2553. MISRA. Unary minus operator should not be applied to an expression of the unsigned type.
V2554. MISRA. Expression containing increment (++) or decrement (--) should not have other side effects.
V2555. MISRA. Incorrect shifting expression.
V2556. MISRA. Use of a pointer to FILE when the associated stream has already been closed.
V2557. MISRA. Operand of sizeof() operator should not have other side effects.
V2558. MISRA. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified.
V2559. MISRA. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array.
V2560. MISRA. There should be no user-defined variadic functions.
V2561. MISRA. The result of an assignment expression should not be used.
V2562. MISRA. Expressions with pointer type should not be used in the '+', '-', '+=' and '-=' operations.
V2563. MISRA. Array indexing should be the only form of pointer arithmetic and it should be applied only to objects defined as an array type.
V2564. MISRA. There should be no implicit integral-floating conversion.
V2565. MISRA. A function should not call itself either directly or indirectly.
V2566. MISRA. Constant expression evaluation should not result in an unsigned integer wrap-around.
V2567. MISRA. Cast should not remove 'const' / 'volatile' qualification from the type that is pointed to by a pointer or a reference.
V2568. MISRA. Both operands of an operator should be of the same type category.
V2569. MISRA. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded.
V2570. MISRA. Operands of the logical '&&' or the '||' operators, the '!' operator should have 'bool' type.
V2571. MISRA. Conversions between pointers to objects and integer types should not be performed.
V2572. MISRA. Value of the expression should not be converted to the different essential type or the narrower essential type.
V2573. MISRA. Identifiers that start with '__' or '_[A-Z]' are reserved.
V2574. MISRA. Functions should not be declared at block scope.
V2575. MISRA. The global namespace should only contain 'main', namespace declarations and 'extern "C"' declarations.
V2576. MISRA. The identifier 'main' should not be used for a function other than the global function 'main'.
V2577. MISRA. The function argument corresponding to a parameter declared to have an array type should have an appropriate number of elements.
V2578. MISRA. An identifier with array type passed as a function argument should not decay to a pointer.
V2579. MISRA. Macro should not be defined with the same name as a keyword.
V2580. MISRA. The 'restrict' specifier should not be used.
V2581. MISRA. Single-line comments should not end with a continuation token.
V2582. MISRA. Block of memory should only be freed if it was allocated by a Standard Library function.
V2583. MISRA. Line whose first token is '#' should be a valid preprocessing directive.
V2584. MISRA. Expression used in condition should have essential Boolean type.
V2585. MISRA. Casts between a void pointer and an arithmetic type should not be performed.
V2586. MISRA. Flexible array members should not be declared.
V2587. MISRA. The '//' and '/*' character sequences should not appear within comments.
V2588. MISRA. All memory or resources allocated dynamically should be explicitly released.
V2589. MISRA. Casts between a pointer and a non-integer arithmetic type should not be performed.
V2590. MISRA. Conversions should not be performed between pointer to function and any other type.
V2591. MISRA. Bit fields should only be declared with explicitly signed or unsigned integer type
V2592. MISRA. An identifier declared in an inner scope should not hide an identifier in an outer scope.
V2593. MISRA. Single-bit bit fields should not be declared as signed type.
V2594. MISRA. Controlling expressions should not be invariant.
V2595. MISRA. Array size should be specified explicitly when array declaration uses designated initialization.
V2596. MISRA. The value of a composite expression should not be assigned to an object with wider essential type.
V2597. MISRA. Cast should not convert pointer to function to any other pointer type.
V2598. MISRA. Variable length array types are not allowed.
V2599. MISRA. The standard signal handling functions should not be used.
V2600. MISRA. The standard input/output functions should not be used.
V2601. MISRA. Functions should be declared in prototype form with named parameters.
V2602. MISRA. Octal and hexadecimal escape sequences should be terminated.
V2603. MISRA. The 'static' keyword shall not be used between [] in the declaration of an array parameter.
V2604. MISRA. Features from <stdarg.h> should not be used.
V2605. MISRA. Features from <tgmath.h> should not be used.
V2606. MISRA. There should be no attempt to write to a stream that has been opened for reading.
V2607. MISRA. Inline functions should be declared with the static storage class.
V2608. MISRA. The 'static' storage class specifier should be used in all declarations of object and functions that have internal linkage.
V2609. MISRA. There should be no occurrence of undefined or critical unspecified behaviour.
V2610. MISRA. The ', " or \ characters and the /* or // character sequences should not occur in a header file name.
V2611. MISRA. Casts between a pointer to an incomplete type and any other type shouldn't be performed.
V2612. MISRA. Array element should not be initialized more than once.
V2613. MISRA. Operand that is a composite expression has more narrow essential type than the other operand.
V2614. MISRA. External identifiers should be distinct.
V2615. MISRA. A compatible declaration should be visible when an object or function with external linkage is defined.
V2616. MISRA. All conditional inclusion preprocessor directives should reside in the same file as the conditional inclusion directive to which they are related.
V2617. MISRA. Object should not be assigned or copied to an overlapping object.
V2618. MISRA. Identifiers declared in the same scope and name space should be distinct.
V2619. MISRA. Typedef names should be unique across all name spaces.
V2620. MISRA. Value of a composite expression should not be cast to a different essential type category or a wider essential type.
V2621. MISRA. Tag names should be unique across all name spaces.
V2622. MISRA. External object or function should be declared once in one and only one file.
V2623. MISRA. Macro identifiers should be distinct.
V2624. MISRA. The initializer for an aggregate or union should be enclosed in braces.
V2625. MISRA. Identifiers that define objects or functions with external linkage shall be unique.
Стандарт AUTOSAR
V3501. AUTOSAR. Octal constants should not be used.
V3502. AUTOSAR. Size of an array is not specified.
V3503. AUTOSAR. The 'goto' statement shouldn't jump to a label declared earlier.
V3504. AUTOSAR. The body of a loop\conditional statement should be enclosed in braces.
V3505. AUTOSAR. The function with the 'atof/atoi/atol/atoll' name should not be used.
V3506. AUTOSAR. The function with the 'abort/exit/getenv/system' name should not be used.
V3507. AUTOSAR. The macro with the 'setjmp' name and the function with the 'longjmp' name should not be used.
V3508. AUTOSAR. Unbounded functions performing string operations should not be used.
V3509. AUTOSAR. Unions should not be used.
V3510. AUTOSAR. Declaration should contain no more than two levels of pointer nesting.
V3511. AUTOSAR. The 'if' ... 'else if' construct should be terminated with an 'else' statement.
V3512. AUTOSAR. Literal suffixes should not contain lowercase characters.
V3513. AUTOSAR. Every switch-clause should be terminated by an unconditional 'break' or 'throw' statement.
V3514. AUTOSAR. The 'switch' statement should have 'default' as the last label.
V3515. AUTOSAR. All integer constants of unsigned type should have 'U' suffix.
V3516. AUTOSAR. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement.
V3517. AUTOSAR. The functions from time.h/ctime should not be used.
V3518. AUTOSAR. A switch-expression should not have Boolean type. Consider using of 'if-else' construct.
V3519. AUTOSAR. The comma operator should not be used.
V3520. AUTOSAR. Any label should be declared in the same block as 'goto' statement or in any block enclosing it.
V3521. AUTOSAR. The loop counter should not have floating-point type.
V3522. AUTOSAR. Unreachable code should not be present in the project.
V3523. AUTOSAR. Functions should not have unused parameters.
V3524. AUTOSAR. The value of uninitialized variable should not be used.
V3525. AUTOSAR. Function with a non-void return type should return a value from all exit paths.
V3526. AUTOSAR. Expression resulting from the macro expansion should be surrounded by parentheses.
V3527. AUTOSAR. The return value of non-void function should be used.
V3528. AUTOSAR. The address of an object with local scope should not be passed out of its scope.
V3529. AUTOSAR. Floating-point values should not be tested for equality or inequality.
V3530. AUTOSAR. Variable should be declared in a scope that minimizes its visibility.
V3531. AUTOSAR. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration.
V3532. AUTOSAR. Unary minus operator should not be applied to an expression of the unsigned type.
V3533. AUTOSAR. Expression containing increment (++) or decrement (--) should not have other side effects.
V3534. AUTOSAR. Incorrect shifting expression.
V3535. AUTOSAR. Operand of sizeof() operator should not have other side effects.
V3536. AUTOSAR. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified.
V3537. AUTOSAR. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array.
V3538. AUTOSAR. The result of an assignment expression should not be used.
V3539. AUTOSAR. Array indexing should be the only form of pointer arithmetic and it should be applied only to objects defined as an array type.
V3540. AUTOSAR. There should be no implicit integral-floating conversion.
V3541. AUTOSAR. A function should not call itself either directly or indirectly.
V3542. AUTOSAR. Constant expression evaluation should not result in an unsigned integer wrap-around.
V3543. AUTOSAR. Cast should not remove 'const' / 'volatile' qualification from the type that is pointed to by a pointer or a reference.
V3544. AUTOSAR. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded.
V3545. AUTOSAR. Operands of the logical '&&' or the '||' operators, the '!' operator should have 'bool' type.
V3546. AUTOSAR. Conversions between pointers to objects and integer types should not be performed.
V3547. AUTOSAR. Identifiers that start with '__' or '_[A-Z]' are reserved.
V3548. AUTOSAR. Functions should not be declared at block scope.
V3549. AUTOSAR. The global namespace should only contain 'main', namespace declarations and 'extern "C"' declarations.
V3550. AUTOSAR. The identifier 'main' should not be used for a function other than the global function 'main'.
V3551. AUTOSAR. An identifier with array type passed as a function argument should not decay to a pointer.
V3552. AUTOSAR. Cast should not convert a pointer to a function to any other pointer type, including a pointer to function type.
V3553. AUTOSAR. The standard signal handling functions should not be used.
V3554. AUTOSAR. The standard input/output functions should not be used.
V3555. AUTOSAR. The 'static' storage class specifier should be used in all declarations of functions that have internal linkage.
Стандарт OWASP (C++)
V5001. OWASP. It is highly probable that the semicolon ';' is missing after 'return' keyword.
V5002. OWASP. An empty exception handler. Silent suppression of exceptions can hide the presence of bugs in source code during testing.
V5003. OWASP. The object was created but it is not being used. The 'throw' keyword could be missing.
V5004. OWASP. Consider inspecting the expression. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type.
V5005. OWASP. A value is being subtracted from the unsigned variable. This can result in an overflow. In such a case, the comparison operation can potentially behave unexpectedly.
V5006. OWASP. More than N bits are required to store the value, but the expression evaluates to the T type which can only hold K bits.
V5007. OWASP. Consider inspecting the loop expression. It is possible that the 'i' variable should be incremented instead of the 'n' variable.
V5008. OWASP. Classes should always be derived from std::exception (and alike) as 'public'.
V5009. OWASP. Unchecked tainted data is used in expression.
V5010. OWASP. The variable is incremented in the loop. Undefined behavior will occur in case of signed integer overflow.
V5011. OWASP. Possible overflow. Consider casting operands, not the result.
V5012. OWASP. Potentially unsafe double-checked locking.
V5013. OWASP. Storing credentials inside source code can lead to security issues.
V5014. OWASP. Cryptographic function is deprecated. Its use can lead to security issues. Consider switching to an equivalent newer function.
Стандарт OWASP (C#)
V5601. OWASP. Storing credentials inside source code can lead to security issues.
V5602. OWASP. The object was created but it is not being used. The 'throw' keyword could be missing.
V5603. OWASP. The original exception object was swallowed. Stack of original exception could be lost.
V5604. OWASP. Potentially unsafe double-checked locking. Use volatile variable(s) or synchronization primitives to avoid this.
V5605. OWASP. Unsafe invocation of event, NullReferenceException is possible. Consider assigning event to a local variable before invoking it.
V5606. OWASP. An exception handling block does not contain any code.
V5607. OWASP. Exception classes should be publicly accessible.
V5608. OWASP. Possible SQL injection. Potentially tainted data is used to create SQL command.
V5609. OWASP. Possible path traversal vulnerability. Potentially tainted data is used as a path.
V5610. OWASP. Possible XSS vulnerability. Potentially tainted data might be used to execute a malicious script.
V5611. OWASP. Potential insecure deserialization vulnerability. Potentially tainted data is used to create an object using deserialization.
V5612. OWASP. Do not use old versions of SSL/TLS protocols as it may cause security issues.
V5613. OWASP. Use of outdated cryptographic algorithm is not recommended.
V5614. OWASP. Potential XXE vulnerability. Insecure XML parser is used to process potentially tainted data.
V5615. OWASP. Potential XEE vulnerability. Insecure XML parser is used to process potentially tainted data.
V5616. OWASP. Possible command injection. Potentially tainted data is used to create OS command.
V5617. OWASP. Assigning potentially negative or large value as timeout of HTTP session can lead to excessive session expiration time.
V5618. OWASP. Possible server-side request forgery. Potentially tainted data is used in the URL.
V5619. OWASP. Possible log injection. Potentially tainted data is written into logs.
V5620. OWASP. Possible LDAP injection. Potentially tainted data is used in a search filter.
V5621. OWASP. Error message contains potentially sensitive data that may be exposed.
V5622. OWASP. Possible XPath injection. Potentially tainted data is used in the XPath expression.
V5623. OWASP. Possible open redirect vulnerability. Potentially tainted data is used in the URL.
V5624. OWASP. Use of potentially tainted data in configuration may lead to security issues.
V5625. OWASP. Referenced package contains vulnerability.
V5626. OWASP. Possible ReDoS vulnerability. Potentially tainted data is processed by regular expression that contains an unsafe pattern.
V5627. OWASP. Possible NoSQL injection. Potentially tainted data is used to create query.
V5628. OWASP. Possible Zip Slip vulnerability. Potentially tainted data is used in the path to extract the file.
Стандарт OWASP (Java)
V5301. OWASP. An exception handling block does not contain any code.
V5302. OWASP. Exception classes should be publicly accessible.
V5303. OWASP. The object was created but it is not being used. The 'throw' keyword could be missing.
V5304. OWASP. Unsafe double-checked locking.
V5305. OWASP. Storing credentials inside source code can lead to security issues.
V5306. OWASP. The original exception object was swallowed. Cause of original exception could be lost.
V5307. OWASP. Potentially predictable seed is used in pseudo-random number generator.
V5308. OWASP. Possible overflow. The expression will be evaluated before casting. Consider casting one of the operands instead.
V5309. OWASP. Possible SQL injection. Potentially tainted data is used to create SQL command.
Проблемы при работе анализатора кода
V001. A code fragment from 'file' cannot be analyzed.
V002. Some diagnostic messages may contain incorrect line number.
V003. Unrecognized error found...
V004. Diagnostics from the 64-bit rule set are not entirely accurate without the appropriate 64-bit compiler. Consider utilizing 64-bit compiler if possible.
V005. Cannot determine active configuration for project. Please check projects and solution configurations.
V006. File cannot be processed. Analysis aborted by timeout.
V007. Deprecated CLR switch was detected. Incorrect diagnostics are possible.
V008. Unable to start the analysis on this file.
V010. Analysis of 'Makefile/Utility' type projects is not supported in this tool. Use direct analyzer integration or compiler monitoring instead.
V011. Presence of #line directives may cause some diagnostic messages to have incorrect file name and line number.
V012. Some warnings could have been disabled.
V013. Intermodular analysis may be incomplete, as it is not run on all source files.
V014. The version of your suppress file is outdated. Appending new suppressed messages to it is not possible. Consider re-generating your suppress file to continue updating it.
V015. All analyzer messages were filtered out or marked as false positive. Use filter buttons or 'Don't Check Files' settings to enable message display.
V016. User annotation was not applied to a virtual function. To force the annotation, use the 'enable_on_virtual' flag.
V017. The analyzer terminated abnormally due to lack of memory.
V018. False Alarm marks without hash codes were ignored because the 'V_HASH_ONLY' option is enabled.
V019. Error occurred while working with the user annotation mechanism.
V020. Error occurred while working with rules configuration files.
V051. Some of the references in project are missing or incorrect. The analysis results could be incomplete. Consider making the project fully compilable and building it before analysis.
V052. A critical error had occurred.
V061. An error has occurred.
V062. Failed to run analyzer core. Make sure the correct 64-bit Java 11 or higher executable is used, or specify it manually.
V063. Analysis aborted by timeout.
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11 Дек 2024

История версий PVS-Studio

11 Дек 2024

PVS-Studio 7.34 (11 декабря 2024)

  • Анализатор PVS-Studio для операционных систем семейства macOS портирован на процессоры Apple Silicon с архитектурой ARM64. Скачать PVS-Studio можно на странице загрузок.
  • В C# анализатор PVS-Studio добавлена поддержка проектов для .NET 9.
  • В Java анализаторе PVS-Studio появился механизм для проведения taint-анализа. На его основе была создана первая диагностика — поиск SQL-инъекций. В следующем году в Java анализаторе будет сделан упор на SAST, покрытие списка наиболее распространённых потенциальных уязвимостей OWASP Top 10, а также будет добавлено больше taint-диагностик.
  • В утилиты командной строки PVS-Studio_Cmd и pvs-studio-dotnet был добавлен режим проверки модифицированных файлов, позволяющий автоматически обнаружить изменённые между запусками анализа исходные файлы. Данный режим является альтернативой инкрементальному анализу и может быть полезен при проверке Pull Request'ов. Подробнее о новом режиме можно прочитать в документации.
  • В плагин PVS-Studio для Visual Studio Code и утилиту командной строки plog-converter была добавлена возможность отображения критических ошибок согласно ГОСТ Р 71207-2024.
  • Добавлена возможность загрузки отчёта PVS-Studio в веб-интерфейс для просмотра и агрегации результатов анализа CodeChecker. Поддержка PVS-Studio при установке CodeChecker из пакетного менеджера pip появится с выходом версии 6.25.0. Подробнее об интеграции можно прочитать в документации.
  • Добавлена возможность гибкой настройки включения или выключения из анализа исходных файлов и файлов настроек .pvsconfig. Также данный механизм можно будет использовать для проверки Unreal Engine проектов с помощью Unreal Build Tool, начиная с версии 5.5.2. Подробнее можно прочитать в документации.
  • Анализаторы PVS-Studio были проверены на совместимость и корректную работу с операционными системами РЕД ОС 7.3 и РЕД ОС 8.
  • [Breaking change] Изменились требования C# анализатора PVS-Studio на Windows. Для анализа .NET проектов теперь потребуется установка .NET 9 SDK. Для анализа .NET Standard и .NET Framework SDK-style проектов также потребуется .NET SDK 9. Требования по проверке не изменились для классических .NET Framework проектов: если в системе установлены Visual Studio или MSBuild версий 2017, 2019 или 2022, достаточно наличия в системе .NET Framework 4.7.2. Для классических .NET Framework проектов в системах с Visual Studio или MSBuild версий 2015 или более старых теперь также будет требоваться присутствие .NET 9 SDK. При использовании silent режима установки на Windows, если необходимо запускать анализ на проектах, которые теперь требуют наличия в системе .NET 9 SDK, потребуется указать компонент DOTNET для установки .NET 9 SDK, если SDK не был установлен в системе отдельно.
  • [Breaking change] В утилите командной строки pvs-studio-analyzer изменено поведение флага ‑‑sourcetree-root (-r). При подмене путей в генерируемом отчёте путь до базовой директории проверяется на существование. Если часть путей не получилось подменить, то выдаётся сообщение с предупреждением, но код возврата остаётся равным 0. Если же не получилось подменить ни один путь, то помимо сообщения с предупреждением код возврата будет ненулевым.
  • V1116. Creating an exception object without an explanatory message may result in insufficient logging.
  • V1117. The declared function type is cv-qualified. The behavior when using this type is undefined.
  • V2022. Implicit type conversion from integer type to enum type.
  • V5014. OWASP. Cryptographic function is deprecated. Its use can lead to security issues. Consider switching to an equivalent newer function.
  • V3207. The 'not A or B' logical pattern may not work as expected. The 'not' pattern is matched only to the first expression from the 'or' pattern.
  • V3208. Unity Engine. Using 'WeakReference' instance with 'UnityEngine.Object' is not supported. GC will not properly reclaim memory from this object because it is linked to a native object.
  • V3209. Unity Engine. Re-applying await to an Awaitable object will result in an exception.
  • V3210. Unity Engine. Unity does not allow removing the 'Transform' component using 'Destroy' or 'DestroyImmediate' methods. The method call will be ignored.
  • V4007. Unity Engine. Avoid creating and destroying UnityEngine objects in performance-sensitive context. Consider activating and deactivating them instead.
  • V6123. Modified value of the operand is not used after the increment/decrement operation.
  • V6124. Converting an integer literal to the type with a smaller value range will result in overflow.
  • V6125. Calling the 'wait', 'notify', and 'notifyAll' methods outside of synchronized context will lead to 'IllegalMonitorStateException'.
  • V5309. Possible SQL injection. Potentially tainted data is used to create SQL command.

PVS-Studio 7.33 (7 октября 2024)

  • Плагин PVS-Studio для IDE Qt Creator портирован на комплект разработчика для операционной системы "Нейтрино". Поддержана работа с Qt Creator 6.0.2 (Qt 5.15) из данного комплекта разработчика.
  • В утилиту командной строки PVS-Studio_Cmd была добавлена возможность отображения критических ошибок согласно ГОСТ Р 71207-2024. Для этого необходимо включить настройку "Security Related Issues" в плагине PVS-Studio для Visual Studio.
  • В C++ анализаторе PVS-Studio было уменьшено потребление памяти при анализе инстанцирования шаблонов, а также инициализации большого количества глобальных переменных строковыми литералами.
  • В C++ анализаторе PVS-Studio было уменьшено количество ложных срабатываний при анализе кода, относящегося к проектам Unreal Engine. Унифицирована обработка встроенных функций компилятора __builtin_expect и доработана обработка выражений явных приведений к bool. Это улучшило анализ check-функций, управляемых макросом DO_CHECK в проектах Unreal Engine.
  • Для режима интеграции PVS-Studio с Unreal Engine была добавлена поддержка системы распределённой сборки SN-DBS. Подробнее об этом можно прочитать в нашей документации об интеграции анализатора PVS-Studio с Unreal Engine. Данные изменения актуальны для версии Unreal Engine 5.5.
  • В C# анализаторе PVS-Studio была реализована возможность проставления пользовательских аннотаций функций и типов в формате JSON по аналогии со схожей функциональностью C++ анализатора PVS-Studio. Подробнее об этой функциональности можно прочитать в нашей документации.
  • Была исправлена ошибка работы плагина PVS-Studio для Visual Studio при его использовании с Visual Studio версий 17.12 и выше.
  • Были исправлены проблемы работы С# анализатора PVS-Studio в системе с установленным .NET версий 8.0.400 и выше.
  • [Breaking change] Были подняты версии форматов отчётов анализаторов PVS-Studio .json и .plog до версий 3 и 9 соответственно. Теперь у C# проектов, имеющих несколько целевых фреймворков (target framework), имя фреймворка не приписывается к имени проекта.
  • [Breaking change] В формат JSON отчёта C++ анализатора PVS-Studio было добавлено новое поле analyzedSourceFiles. В данное поле записывается дополнительная информация о том, в какой единице трансляции произошло срабатывание диагностического правила. Это полезно в случаях, когда потенциальная ошибка содержится в заголовочных файлах.
  • [Breaking change] Версия JSON-схемы пользовательских аннотаций функций и типов PVS-Studio поднята до версии 2. В схему была добавлена новая сущность language. Она позволяет использовать пользовательские аннотации только в анализаторе для конкретного языка. Помимо этого, было изменено значение поля id.
  • [Breaking change] В системе пользовательских аннотаций функций и типов PVS-Studio комментарий //V_PVS_ANNOTATIONS $path для включения пользовательских аннотаций помечен как устаревший. В качестве замены предлагается использовать комментарий вида //V_PVS_ANNOTATIONS, language: $lang, path: $path.
  • [Breaking change] Минимальные поддерживаемые версии IDE JetBrains IDEA, CLion и Rider были подняты до версии 2022.2.
  • [Breaking change] Изменено разрешение путей в плагине PVS-Studio для сборочной системы Gradle. Теперь относительные пути из конфигурации разрешаются относительно директории проекта, а не относительно директории gradle daemon.
  • [Breaking change] Была удалена возможность конвертации отчёта PVS-Studio при помощи утилит plog converter в специфичный для Visual Studio Code формат SARIF, используемый в плагине SARIF Viewer. Конвертация в соответствующий стандарту отчёт формата SARIF сохранена.
  • V1113. Potential resource leak. Calling the 'memset' function will change the pointer itself, not the allocated resource. Check the first and third arguments.
  • V1114. Suspicious use of 'dynamic_cast' when working with COM interfaces. Consider using the 'QueryInterface' member function.
  • V1115. Function annotated with the 'pure' attribute has side effects.
  • V3204. The expression is always false due to implicit type conversion. Overflow check is incorrect.
  • V3205. Unity Engine. Improper creation of 'MonoBehaviour' or 'ScriptableObject' object using the 'new' operator. Use the special object creation method instead.
  • V3206. Unity Engine. A direct call to the coroutine-like method will not start it. Use the 'StartCoroutine' method instead.
  • V4006. Unity Engine. Multiple operations between complex and numeric values. Prioritizing operations between numeric values can optimize execution time.
  • V6118. The original exception object was swallowed. Cause of original exception could be lost.
  • V6119. The result of '&' operator is always '0'.
  • V6120. The result of the '&' operator is '0' because one of the operands is '0'.
  • V6121. Return value is not always used. Consider inspecting the 'foo' method.
  • V6122. The 'Y' (week year) pattern is used for date formatting. Check whether the 'y' (year) pattern was intended instead.

PVS-Studio 7.32 (06 августа 2024)

  • В связи с изменениями в API платформы SonarQube был разработан новый плагин для интеграции анализатора PVS-Studio в платформу SonarQube. Начиная с версии SonarQube 10.1, необходимо использовать новую версию плагина. Версия плагина PVS-Studio для более ранних версий SonarQube продолжает поддерживаться и получать обновления параллельно с новым плагином.
  • Добавлена поддержка интеграции анализатора PVS-Studio в проекты, использующие сборочные системы Bazel и Scons.
  • Плагин PVS-Studio стал доступен для Qt Creator версий 14.x. Прекращена поддержка плагина для версий Qt Creator 8.x. Мы стараемся обеспечивать обратную совместимость по поддержке последних версий плагинов для всех версий Qt Creator за два года с момента каждого релиза.
  • Оптимизировано потребление памяти С++ анализатора при анализе инстанцирования шаблонов. При этом сохранена возможность отключения анализа их инстанцирования с помощью флага настройки DisableTemplateInstantiationCpp в плагине PVS-Studio для Visual Studio или настройки //V_DISABLE_TEMPLATE_INSTANTIATION в файлах конфигурации pvsconfig в случае, если потребление памяти анализатором всё ещё остаётся избыточно высоким.
  • Улучшен разбор стандартной библиотеки Microsoft Visual C++, используемой в версии Visual Studio 17.10.
  • В C++ анализаторе PVS-Studio добавлена возможность разметки источников и приёмников при анализе помеченных (taint) данных. Она реализована в механизме пользовательских аннотаций в формате JSON.
  • Добавлена возможность исключения из анализа проектов при анализе проектов для сборочной системы MSBuild с помощью файлов конфигурации анализатора .pvsconfig. Эта возможность реализуется включением флага V_EXCLUDE_PROJECT в файл конфигурации диагностик pvsconfig.
  • Добавлена возможность использования файлов конфигурации диагностик pvsconfig в плагине PVS-Studio для IDE JetBrains CLion.
  • [Breaking change] Изменён синтаксис пользовательских аннотаций в формате JSON для С++ анализатора PVS-Studio. Использование атрибутов nullable_initialized и nullable_uninitialized устарело. Вместо них введены атрибуты возвращаемого объекта not_null, maybe_null, always_null.
  • [Breaking change] Изменён приоритет флага ‑‑sourceTreeRoot в утилите PVS-Studio_Cmd.exe, задающего корневую часть пути для конвертации путей из абсолютных в относительные. Теперь этот флаг имеет приоритет над настройками UseSolutionDirAsSourceTreeRoot в конфигурационном файле Settings.xml и //V_SOLUTION_DIR_AS_SOURCE_TREE_ROOT в файлах конфигурации диагностик pvsconfig.
  • V1111. The index was used without check after it was checked in previous lines.
  • V1112. Comparing expressions with different signedness can lead to unexpected results.
  • V2021. Using assertions may cause the abnormal program termination in undesirable contexts.
  • V3201. Return value is not always used. Consider inspecting the 'foo' method.
  • V3202. Unreachable code detected. The 'case' value is out of the range of the match expression.
  • V3203. Method parameter is not used.
  • V6115. Not all Closeable members are released inside the 'close' method.
  • V6116. The class does not implement the Closeable interface, but it contains the 'close' method that releases resources.
  • V6117. Possible overflow. The expression will be evaluated before casting. Consider casting one of the operands instead.

PVS-Studio 7.31 (11 июня 2024)

  • Добавлена возможность установки настроек в конфигурационных файлах .pvsconfig в зависимости от версии анализатора, использующего данные файлы. Эта возможность доступна в С++ анализаторе PVS-Studio.
  • В утилите pvs-studio-analyzer была расширена система анализа отдельных файлов с помощью флага ‑‑source-files. Теперь использование утилиты в условиях отличия кэша зависимостей компиляций для C и C++ файлов от структуры проекта стало более удобным. Такая ситуация может возникнуть, например, при частом переключении веток в одном рабочем пространстве или запуске анализа на разных версиях проекта.
  • В систему пользовательских аннотаций C++ анализатора была добавлена возможность задавать диапазон возможных и невозможных значений для целочисленных параметров функций.
  • Была доработана и актуализирована документация об использовании анализаторов PVS-Studio в облачной CI-системе CircleCI.
  • V1108. Constraint specified in a custom function annotation on the parameter is violated.
  • V1109. Function is deprecated. Consider switching to an equivalent newer function.
  • V1110. Constructor of a class inherited from 'QObject' does not use a pointer to a parent object.
  • V3199. Index from end operator used with the value that is less than or equal to zero. Index is out of bound.
  • V3200. Possible overflow. The expression will be evaluated before casting. Consider casting one of the operands instead.
  • V6113. Suspicious division. Absolute value of the left operand is less than the value of the right operand.
  • V6114. The 'A' class containing Closeable members does not implement the Closeable interface.

PVS-Studio 7.30 (12 апреля 2024)

  • В C++ анализаторе PVS-Studio был реализован механизм пользовательских аннотаций —способ разметки типов и функций в формате JSON с целью дать анализатору дополнительную информацию. Благодаря этой информации анализатор может находить больше ошибок в коде. Такие аннотации необходимо поместить в специальный файл формата JSON. С помощью этих аннотаций возможно, помимо прочего, пометить функцию как опасную для использования, определить собственный тип как nullable и т.п. Больше об этом режиме можно узнать в документации.
  • Было внесено множество улучшений в интеграцию PVS-Studio и Unreal Engine, доступных начиная с версии UE 5.4:
  • Реализована многофайловая навигация по предупреждениям, содержащимся в отчёте анализатора PVS-Studio;
  • Исправлена ошибка, приводящая к падению анализа в Unreal Engine 5.3 при запуске анализа через флаг компиляции -StaticAnalyzer=PVSStudio.
  • Поддержка отключения стандартного вывода Unreal Build Tool в консоль при проведении анализа. Это может значительно сократить время постобработки отчёта анализатора в проектах с большим количеством предупреждений;
  • Анализ автоматически сгенерированных файлов .gen.cpp теперь по умолчанию отключён. Включение анализа таких файлов возможно через специальную настройку;
  • Добавлена настройка, позволяющая запускать анализатор только на файлах проекта, пропуская модуль ядра Unreal Engine. Использование этой настройки позволяет значительно ускорить процесс анализа.
  • Была расширена система анализа отдельных файлов с помощью флага ‑‑sourceFiles и повторной генерации кэша зависимостей проекта. Теперь данный режим устойчив к ситуациям, когда кэш зависимостей находится в состоянии, не соответствующем структуре проекта. Такое может случиться, например, в случае использования множественных веток в системе контроля версий. Помимо этого, была добавлена возможность запуска с полным обновлением кэша: это позволяет проводить анализ с полностью корректным кэшем зависимостей в случае, если поддержание его в актуальном состоянии было невозможно.
  • Была добавлена поддержка GNU RISC-V GCC Toolchain для платформы RISC-V для C++ анализатора PVS-Studio.
  • Для C++ анализатора PVS-Studio был реализован анализ стандартного типа bool, появившегося в стандарте C23 языка С. Это улучшило поддержку MISRA Essential Type Model, а также диагностик, основанных на MISRA Essential Type Model.
  • Для C++ анализатора PVS-Studio была улучшена работа со стандартной библиотекой С++, а также добавлена поддержка большего количества интринзиков компилятора, например, __add_lvalue_reference, __add_pointer, __add_rvalue_reference и других. Это привело к улучшению качества работы диагностик.
  • Плагин PVS-Studio теперь доступен для Qt Creator версии 13.
  • V1105. Suspicious string modification using the 'operator+='. The right operand is implicitly converted to a character type.
  • V1106. Qt. Class inherited from 'QObject' does not contain a constructor that accepts a pointer to 'QObject'.
  • V1107. Function was declared as accepting unspecified number of parameters. Consider explicitly specifying the function parameters list.
  • V3196. Parameter is not utilized inside the method body, but an identifier with a similar name is used inside the same method.
  • V3197. The compared value inside the 'Object.Equals' override is converted to a different type that does not contain the override.
  • V3198. The variable is assigned the same value that it already holds.
  • V6110. Using an environment variable could be unsafe or unreliable. Consider using trusted system property instead.
  • V6111. Potentially negative value is used as the size of an array.
  • V6112. Calling the 'getClass' method repeatedly or on the value of the '.class' literal will always return the instance of the 'Class' type.

PVS-Studio 7.29 (7 февраля 2024)

  • Добавили поддержку анализа проектов на языке Java в плагине PVS-Studio для Visual Studio Code.
  • В С++ анализаторе реализована поддержка умных указателей из библиотеки Boost: boost::unique_ptr и boost::shared_ptr. Теперь анализатор PVS-Studio определяет ошибки наподобие разыменовывания нулевого указателя при использовании данных классов.
  • Добавлен режим учёта хэша строки исходного кода, вызвавшей срабатывание, при разметке ложно-позитивных срабатываний. Это позволяет понять, менялась ли строка кода с момента отметки срабатывания, как ложного. При использовании нового режима разметки, в случае наличия изменений в коде, отметка ложного срабатывания перестанет подавлять предупреждение анализатора. Поддержка этой функциональности присутствует в плагинах PVS-Studio для Microsoft Visual Studio.
  • Добавили поддержку плагина PVS-Studio для Qt Creator 12 на операционных системах семейства macOS.
  • V839. Decreased performance. Function returns a constant value. This may interfere with the move semantics.
  • V1104. Priority of the 'M' operator is higher than that of the 'N' operator. Possible missing parentheses.
  • V2625. MISRA. Identifier with external linkage should be unique.
  • V3194. Calling 'OfType' for collection will return an empty collection. It is not possible to cast collection elements to the type parameter.
  • V3195. Collection initializer implicitly calls 'Add' method. Using it on member with default value of null will result in null dereference exception.
  • V6108. Do not use real-type variables in 'for' loop counters.
  • V6109. Potentially predictable seed is used in pseudo-random number generator.

PVS-Studio 7.28 (5 декабря 2023)

  • В анализаторы PVS-Studio добавлена поддержка работы на платформе ARM на операционной системе Windows. Поддержка работает в режиме совместимости с архитектурой x64. В будущем году планируется реализация также и нативной ARM версии анализатора для операционных систем семейства macOS.
  • В PVS-Studio C# поддержали анализ проектов, использующих .NET 8. Сам C# анализатор под Linux и macOS теперь работает на .NET 8.
  • Добавлена поддержка относительных путей в SARIF отчётах. 
  • При проверке Unreal Engine проектов с помощью PVS-Studio зачастую возникают проблемы с избыточным потреблением памяти и замедлением анализа, вызываемые использованием системы объединения единиц трансляции в один файл (Unity Build). Несмотря на то, что использование такой системы может положительно сказаться на времени компиляции, большой размер файла может привести к повышенному потреблению ресурсов, необходимых для анализа. Мы дополнили документацию по анализу Unreal Engine проектов пунктом про настройку запуска анализа без использования Unity Build, с возможностью сохранения использования этого режима для сборки проекта.
  • Добавили поддержку плагина PVS-Studio для Qt Creator версии 12.0.x
  • Добавили поддержку wildcard-паттернов в командах компиляции для утилиты мониторинга сборок на Windows (CLMonitor).
  • В C# анализаторе доработана и унифицирована с другими анализаторами возможность включения и отключения отдельных диагностик с помощью файлов настройки анализатора (.pvsconfig). Подробнее о .pvsconfig можно прочитать в документации.
  • В C# анализаторе улучшена работа с параметрами, имеющими null в качестве значения по умолчанию. Это позволяет диагностике V3080 находить больше проблем, связанных с разыменованием нулевых ссылок.
  • Исправлена проблема совместной работы Visual Studio плагинов PVS-Studio и Visual Assist.
  • V1103. The values of padding bytes are unspecified. Comparing objects with padding using 'memcmp' may lead to unexpected result.
  • V2624. MISRA. The initializer for an aggregate or union should be enclosed in braces.
  • V3193. Data processing results are potentially used before asynchronous output reading is complete. Consider calling 'WaitForExit' overload with no arguments before using the data.
  • V4005. Unity Engine. The expensive operation is performed inside method or property. Using such member in performance-sensitive context can lead to decreased performance.
  • V6107. The constant NN is being utilized. The resulting value could be inaccurate. Consider using the KK constant.

PVS-Studio 7.27 (11 октября 2023)

  • Плагин PVS-Studio для Visual Studio Code теперь поддерживает работу с проектами под .NET. Функционал включает в себя возможности запуска анализа, просмотра отчёта, подавления предупреждений и т.д. Подробности в документации.
  • Улучшен механизм разбора кода стандартной библиотеки C++ на операционных системах семейства macOS.
  • Улучшен алгоритм автоматического выбора количества одновременно анализируемых файлов. Теперь учитываются не только доступные логические ядра, но и объём доступной в системе оперативной памяти. Это позволяет задавать более оптимальные значения для настроек по умолчанию.
  • В плагине для Rider подержан запуск анализа в режиме прямого открытия проектов Unreal Engine. Также плагин стал доступен для Rider 2023.2. Документация доступна по ссылке.
  • В файле конфигурации pvsconfig теперь можно указать, что пути в отчёте анализатора строятся относительно директории решения. Новая настройка поддерживается как при запуске анализа, так и при просмотре результатов работы анализатора в IDE плагинах. Это упрощает работу с отчётом в случае его передачи между машинами с разной структурой директорий. Документация по pvsconfig доступна здесь.
  • Утилита CLMonitor теперь поддерживает platform toolset v80 и v90.
  • Полностью переработана документация по Java анализатору. Теперь каждому сценарию работы с анализатором посвящён отдельный раздел: интеграция с Maven, интеграция с Gradle, работа в IntelliJ IDEA и Android Studio, а также работа с ядром анализатора из командной строки.
  • V1102. Unreal Engine. Violation of naming conventions may cause Unreal Header Tools to work incorrectly.
  • V2623. MISRA. Macro identifiers should be distinct.
  • V3192. Type member is used in the 'GetHashCode' method but is missing from the 'Equals' method.
  • V4004. Unity Engine. New array object is returned from method and property. Using such member in performance-sensitive context can lead to decreased performance.

PVS-Studio 7.26 (9 августа 2023)

  • В плагине PVS-Studio для Visual Studio Code появилась возможность анализа C и С++ проектов, использующих сборочную систему CMake. Также добавлен функционал задания baseline-уровня предупреждений, позволяющий "очистить" старый код проекта от срабатываний PVS-Studio и начать использовать анализ только на коде, написанном после внедрения анализатора.
  • Плагин PVS-Studio для Qt Creator теперь позволяет проверять проекты, ориентированные на QMake, CMake или Qbs. Кроме того, стало доступным подавление срабатываний через suppress-файлы. С документацией по плагину можно ознакомиться тут.
  • Библиотека Spoon, используемая Java-анализатором для разбора кода, обновлена до версии 10.3.0. Это позволяет проверять проекты, использующие JDK 20 и языковые конструкции Java 20, сохраняя обратную совместимость со всеми предыдущими версиями.
  • Результаты работы анализаторов PVS-Studio теперь можно интегрировать с DefectDojo — системой агрегации и управления результатами работы инструментов обеспечения безопасности. Документация по теме здесь.
  • C# анализатор теперь учитывает атрибуты 'NotNullWhen' и 'NotNullIfNotNull' в проектах, использующих nullable context.
  • В C++ анализаторе был доработан механизм пользовательского аннотирования функций. Теперь можно писать аннотации для функций, находящихся на любом уровне вложенности. Кроме того, при аннотировании допускается использование имени функции без указания класса и пространства имён. Инструкция по написанию аннотаций доступна здесь.
  • Страница классификации предупреждений PVS-Studio согласно списку наиболее опасных и распространённых потенциальных уязвимостей CWE Top 25 обновлена до редакции 2023 года. Анализатор позволяет обнаруживать 64% типов уязвимостей из нового списка.
  • V838. Temporary object is constructed during lookup in ordered associative container. Consider using a container with heterogeneous lookup to avoid construction of temporary objects.
  • V1100. Unreal Engine. Declaring a pointer to a type derived from 'UObject' in a class that is not derived from 'UObject' is dangerous. The pointer may start pointing to an invalid object after garbage collection.
  • V1101. Changing the default value of a virtual function parameter in a derived class may result in unexpected behavior.
  • V3191. Iteration through collection makes no sense because it is always empty.
  • V4002. Unity Engine. Avoid storing consecutive concatenations inside a single string in performance-sensitive context. Consider using StringBuilder to improve performance.
  • V4003. Unity Engine. Avoid capturing variable in performance-sensitive context. This can lead to decreased performance.

PVS-Studio 7.25 (7 июня 2023)

  • Переработана документация по анализу в режиме коммитов и слияния веток (pull/merge requests). Также появились отдельные страницы, посвящённые использованию анализатора в AppVeyor и Buddy.
  • Добавлена инструкция по интеграции результатов работы C# анализатора в SonarQube под Linux. Найти её можно здесь.
  • Плагин PVS-Studio для Qt Creator теперь доступен для версий 10.0.x, а плагин для Rider теперь поддерживает версии 2022.2.3 и выше.
  • Обновлены используемые анализатором версии библиотек MSBuild и Roslyn. Это позволило решить проблемы анализа C# проектов, в которых с помощью атрибутов производится генерация кода.
  • Исправлено падение производительности анализа на процессорах Intel 12 поколения. Это улучшение актуально при анализе C++ проектов для сборочной системы MSBuild.
  • Добавлены новые возможности файлов настройки анализа и диагностических правил (pvsconfig): указание приоритета подключения этих файлов, активация отдельных диагностик (только для C++), а также возможность игнорировать глобальные настройки из Settings.xml (только при работе через Visual Studio или PVS-Studio_Cmd.exe). Подробности в документации.
  • V837. The 'emplace' / 'insert' function does not guarantee that arguments will not be copied or moved if there is no insertion. Consider using the 'try_emplace' function.
  • V1098. The 'emplace' / 'insert' function call contains potentially dangerous move operation. Moved object can be destroyed even if there is no insertion.
  • V1099. Using the function of uninitialized derived class while initializing the base class will lead to undefined behavior.
  • V2020. The loop body contains the 'break;' / 'continue;' statement. This may complicate the control flow.
  • V3190. Concurrent modification of a variable may lead to errors.
  • V4001. Unity Engine. Boxing inside a frequently called method may decrease performance.

PVS-Studio 7.24 (5 апреля 2023)

  • Теперь анализатор лучше понимает особенности сравнения с 'null' в проектах, использующих игровой движок Unity. Ложных срабатываний в таких проектах стало гораздо меньше, что позволяет сконцентрироваться на работе с полезными предупреждениями.
  • Улучшена поддержка C# 9: теперь анализатор учитывает, что выражения с постфиксом '!' (null-forgiving operator) не возвращают 'null'. Однако, вне зависимости от наличия постфикса анализатор продолжит выдавать предупреждения на разыменования выражений, значения которых точно равны 'null'.
  • В плагине для Visual Studio был серьёзно расширен интерфейс для работы с файлами подавления (*.suppress). Теперь можно иметь несколько таких файлов в каждом проекте, просматривать предупреждения из выбранных suppress-файлов, перемещать срабатывания из одного suppress-файла в другой и т. д. Подробности в документации.
  • В утилитах PVS-Studio_Cmd.exe и pvs-studio-dotnet появился новый режим suppression, позволяющий подавлять предупреждения по кодам диагностик, группе или путям к файлам, а также дающий возможность добавления новых suppress-файлов в проект и многое другое. Подробнее о новом режиме можно прочитать в документации.
  • Улучшено нахождение специализаций шаблонов классов при работе диагностик C++ анализатора PVS-Studio.
  • V1095. Usage of potentially invalid handle. The value should be non-negative.
  • V1096. Variable with static storage duration is declared inside the inline function with external linkage. This may lead to ODR violation.
  • V1097. Line splice results in a character sequence that matches the syntax of a universal-character-name. Using this sequence lead to undefined behavior.
  • V3187. Parts of an SQL query are not delimited by any separators or whitespaces. Executing this query may lead to an error.
  • V3188. The value of an expression is a potentially destroyed Unity object or null. Member invocation on this value may lead to an exception.
  • V3189. The assignment to a member of the readonly field will have no effect when the field is of a value type. Consider restricting the type parameter to reference types.

PVS-Studio 7.23 (8 февраля 2023)

  • Плагин PVS-Studio стал доступен для Qt Creator версий 9.0.x. Также его можно теперь использовать не только под Windows и Linux, но и под macOS на архитектуре x86-64.
  • В документацию добавлено описание файла конфигурации Settings.xml, предназначенного для настройки анализа в IDE плагинах PVS-Studio.
  • Исправлена проблема запуска Java анализатора PVS-Studio из-за ненайденных библиотек зависимостей на некоторых дистрибутивах Linux.
  • Теперь CMake модуль корректно работает на проектах, использующих генератор NMake и содержащих большое количество файлов.
  • V1093. The result of the right shift operation will always be 0. The right operand is greater than or equal to the number of bits in the left operand.
  • V1094. Conditional escape sequence in literal. Its representation is implementation-defined.
  • V3184. The argument's value is greater than the size of the collection. Passing the value into the 'Foo' method will result in an exception.
  • V3185. An argument containing a file path could be mixed up with another argument. The other function parameter expects a file path instead.
  • V3186. The arguments violate the bounds of collection. Passing these values into the method will result in an exception.

PVS-Studio 7.22 (7 декабря 2022)

  • Выпустили плагин PVS-Studio для Visual Studio Code. В нём можно работать с отчётами анализатора: смотреть предупреждения, фильтровать их и т. п. Запускать анализ кода пока нельзя — планируем добавить эту возможность в следующих релизах. Документация — здесь.
  • Выпустили плагин PVS-Studio для Qt Creator. Функциональность та же, что и у плагина для Visual Studio Code: можно работать с отчётами, но анализ пока запускать нельзя. Документация — здесь.
  • Улучшили механизм Best Warnings: доработали алгоритмы и скорректировали "веса" диагностик — выборка самых интересных предупреждений должна стать лучше. Поменяли интерфейс: кнопка фильтрации теперь расположена на основной панели главного окна PVS-Studio. Если нужно, её можно скрыть в настройках (опция "Show Best Warnings Button"). Обновлённая документация о Best Warnings — по ссылке.
  • Best Warnings теперь доступен не только в плагине для Visual Studio, но и в утилите C and C++ Compiler Monitoring UI, а также в плагинах для IntelliJ IDEA, Rider, CLion.
  • В PVS-Studio C# поддержали анализ проектов, использующих .NET 7 и C# 11. Сам C# анализатор под Linux и macOS теперь работает на .NET 7.
  • С помощью C# анализатора теперь можно проверять блоки @code в .razor файлах. Это поможет проводить более глубокий анализ веб-проектов.
  • В утилитах PlogConverter и plog-converter доступны новые возможности фильтрации отчетов анализатора. Можно отфильтровать предупреждения и оставить только те, которые выданы на определённые файлы (флаг ‑‑includePaths). Можно сделать обратное: исключить из отчёта предупреждения, выданные на указанные файлы (‑‑excludePaths). Подробности описали в документации.
  • V836. Decreased performance. Unnecessary copying is detected when declaring a variable. Consider declaring the variable as a reference.
  • V2018. Cast should not remove 'const' qualifier from the type that is pointed to by a pointer or a reference.
  • V2019. Cast should not remove 'volatile' qualifier from the type that is pointed to by a pointer or a reference.
  • V3183. Code formatting implies that the statement should not be a part of the 'then' branch that belongs to the preceding 'if' statement.
  • V5626. OWASP. Possible ReDoS vulnerability. Potentially tainted data is processed by regular expression that contains an unsafe pattern.
  • V5627. OWASP. Possible NoSQL injection. Potentially tainted data is used to create query.
  • V5628. OWASP. Possible Zip Slip vulnerability. Potentially tainted data is used in the path to extract the file.

PVS-Studio 7.21 (11 октября 2022)

  • Добавили возможность конвертации результатов работы анализаторов PVS-Studio в отчёт, совместимый с GitLab Code Quality. В документации описали, как это сделать.
  • Продолжаем улучшать интеграцию PVS-Studio с Unreal Engine. Сделали pull request, который позволит использовать больше настроек анализатора при работе с UE-проектами. Например, можно будет указывать таймаут для анализа файлов из UE-проекта. Изменения уже закоммичены в код движка и будут доступны в следующей версии Unreal Engine.
  • Unreal Engine проекты теперь можно проверять не только на Windows, но и на Linux. Подробности описали в документации.
  • PVS-Studio теперь лучше работает с большим количеством типов, специфичных для Unreal Engine.
  • Собрали на отдельной странице документации всю информацию о файлах конфигурации диагностик (.pvsconfig-файлы).
  • Добавили возможность автоматически фильтровать предупреждения анализатора, сообщения которых содержат указанный текст. Это позволит подавлять предупреждения конкретных диагностик по шаблону, не отключая диагностики целиком. Описать такой фильтр можно в .pvsconfig-файлах (C++, C#) или прямо в коде (только C++).
  • Плагин PVS-Studio для Visual Studio теперь поддерживает работу с файлами подавления в формате JSON, который раньше поддерживался только в Linux и macOS утилитах. Это упрощает кроссплатформенные сценарии работы с подавленными предупреждениями. Внедрить PVS-Studio в кроссплатформенные проекты с legacy-кодом также станет легче.
  • V1090. The 'std::uncaught_exception' function is deprecated since C++17 and is removed in C++20. Consider replacing this function with 'std::uncaught_exceptions'.
  • V1091. The pointer is cast to an integer type of a larger size. Casting pointer to a type of a larger size is an implementation-defined behavior.
  • V1092. Recursive function call during the static/thread_local variable initialization might occur. This may lead to undefined behavior.
  • V3178. Calling method or accessing property of potentially disposed object may result in exception.
  • V3179. Calling element access method for potentially empty collection may result in exception.
  • V3180. The 'HasFlag' method always returns 'true' because the value '0' is passed as its argument.
  • V3181. The result of '&' operator is '0' because one of the operands is '0'.
  • V3182. The result of '&' operator is always '0'.

PVS-Studio 7.20 (10 августа 2022)

  • В Unreal Engine 5.0.3 исправили баг с поиском PVS-Studio: теперь анализ можно проводить без workaround'ов.
  • Улучшили анализ проектов на основе Unreal Engine. PVS-Studio теперь выдаёт меньше ложных предупреждений и больше знает о специфичных для движка типах. Например, об аналогах контейнеров из стандартной библиотеки C++.
  • PVS-Studio теперь умеет искать зависимости с известными уязвимостями в C# проектах. Для этого он выполняет анализ компонентного состава ПО (SCA, Software Composition Analysis). Подробнее можно почитать в документации к диагностическому правилу V5625.
  • PVS-Studio покрывает все категории из списка OWASP Top 10 2021. Последнюю, А06, мы покрыли, реализовав SCA. На специальной странице можно посмотреть, какие диагностические правила анализатора ищут дефекты безопасности из каждой категории OWASP Top 10 2021.
  • Для кроссплатформенного анализа C и C++ проектов используются специальные утилиты: pvs-studio-analyzer и CompilerCommandsAnalyzer. Теперь они лучше определяют компиляторы, которые используется в проекте. Если понять тип компилятора не удастся, указать его можно явно. Это особенно полезно в сфере embedded-разработки, где компиляторы имеют множество разных имён. Подробнее можно почитать здесь: флаг '‑‑compiler'.
  • В эти же утилиты (pvs-studio-analyzer и CompilerCommandsAnalyzer) мы внесли ряд улучшений, чтобы сделать кроссплатформенную проверку C и C++ проектов удобнее. Сценарии их использования, флаги запуска и коды возврата описали в новом разделе документации.
  • Поддержали анализ проектов на основе базы данных компиляции (compile_commands.json), созданной в Qt Creator. Здесь можно прочитать, как её сгенерировать.
  • Поддержали последние версии IDE от JetBrains (Rider, CLion, IntelliJ IDEA) – 2022.2.
  • V1086. Call of the 'Foo' function will lead to buffer underflow.
  • V1087. Upper bound of case range is less than its lower bound. This case may be unreachable.
  • V1088. No objects are passed to the 'std::scoped_lock' constructor. No locking will be performed. This can cause concurrency issues.
  • V1089. Waiting on condition variable without predicate. A thread can wait indefinitely or experience a spurious wake up.
  • V3177. Logical literal belongs to second operator with a higher priority. It is possible literal was intended to belong to '??' operator instead.
  • V5624. OWASP. Use of potentially tainted data in configuration may lead to security issues.
  • V5625. OWASP. Referenced package contains vulnerability.

PVS-Studio 7.19 (8 июня 2022)

  • Обновлена документация об использовании PVS-Studio для проверки проектов, использующих игровой движок Unreal Engine. Обновлённая версия описывает различия при настройке анализа для разных версий движка, настройки исключения файлов из анализа, интеграции с IDE, а также подавлении срабатываний анализатора на legacy коде. Важно: несмотря на то, что PVS-Studio можно использовать с последними версиями Unreal Engine версий 5.0 и выше, в механизме интеграции PVS-Studio и Unreal Engine 5 остаётся неразрешённая проблема, вызванная багом на стороне сборочной системы самого движка. Мы работаем с разработчиками движка для исправления данной проблемы. Доступные на данный момент workaround'ы для решения проблемы также описаны в документации PVS-Studio.
  • В C++ анализаторе PVS-Studio улучшено определение целевой платформы для компиляторов семейства QNX Momentics QCC. Неправильное определение платформы в прошлых версиях анализатора могло приводить к ложным срабатываниям.
  • В расширении PVS-Studio для системы непрерывного контроля качества кода SonarQube добавлена поддержка загрузки отчёта в кроссплатформенном формате JSON. Это позволяет использовать одинаковый формат отчёта независимо от платформы, на которой используется анализатор.
  • В продолжение предыдущего пункта - подробнее про все виды отчётов, поддерживаемых различными утилитами PVS-Studio на разных платформах, а также про возможности преобразования отчётов из одних форматов в другие, можно прочитать в новом разделе документации на нашем сайте.
  • В утилите для автоматического оповещения разработчиков blame-notifier добавлена возможность управлять содержимым отправляемых уведомлений: можно прикреплять к письму файлы (включая полный отчёт анализатора), а также задавать тему письма.
  • Добавлена возможность проверять Unreal Engine проекты с помощью бесплатной лицензии PVS-Studio. Напомним, что бесплатная лицензия доступна для студентов при добавлении в проверяемый исходный код специальных комментариев. В предыдущих версиях PVS-Studio проверка Unreal Engine проектов ограничивалась только лицензиями Enterprise-уровня.
  • V834. Incorrect type of a loop variable. This leads to the variable binding to a temporary object instead of a range element.
  • V835. Passing cheap-to-copy argument by reference may lead to decreased performance.
  • V1083. Signed integer overflow in arithmetic expression. This leads to undefined behavior.
  • V1084. The expression is always true/false. The value is out of range of enum values.
  • V1085. Negative value is implicitly converted to unsigned integer type in arithmetic expression.
  • V3175. Locking operations must be performed on the same thread. Using 'await' in a critical section may lead to a lock being released on a different thread.
  • V3176. The '&'= or '|=' operator is redundant because the right operand is always true/false.
  • V5622. OWASP. Possible XPath injection. Potentially tainted data is used in the XPath expression.
  • V5623. OWASP. Possible open redirect vulnerability. Potentially tainted data is used in the URL.

PVS-Studio 7.18 (6 апреля 2022)

  • PVS-Studio расширил покрытие списка наиболее распространённых угроз защищённости Web-приложений OWASP Top 10 версии 2021 года. На данный момент покрыты 9 из 10 категорий. Мы планируем покрыть оставшуюся категорию, A6 Vulnerable and Outdated Components, в одном из будущих релизов, добавив в C# анализатор PVS-Studio проверку компонентного состава ПО (SCA, Software Composition Analysis).
  • В этом релизе С и C++ анализатор PVS-Studio получает обновлённую систему семантического анализа, основанную на улучшенном представлении системы типов данных проверяемого кода. Внедрение нового представления системы типов данных позволило анализатору начать значительно лучше разбирать современный язык C++, сложные конструкции, использующие шаблоны, стандартную библиотеку языка. Благодаря этому очень многие диагностических правила анализатора смогут находить больше потенциально опасных мест, а также будут меньше ошибаться. Тем не менее, учитывая фундаментальный характер данного нововведения, возможно также и появление новых ложно-позитивных срабатываний. Если вы столкнулись с такими ложными срабатываниями после обновления на данную версию анализатора, пожалуйста, напишите о них в нашу поддержку - мы всегда стараемся оперативно исправлять ошибки в работе анализатора.
  • В системе отслеживания компиляции для Windows поддержан режим "оборачивания" отслеживаемых процессов с помощью настроек IFEO (Image File Execution Options). Система отслеживания компиляции (compiler monitoring) - это универсальный способ "бесшовной" интеграции с любой сборочной системой, использующей компиляторы, поддерживаемые анализатором PVS-Studio. Новый режим запуска требует небольшой дополнительной конфигурации перед использованием, однако позволяет устранить существенный недостаток системы отслеживания компиляции - пропуск недолгоживущих процессов. Данная проблема особенна актуальна при компиляции C кода для embedded платформ. Новый режим анализа позволяет проверять такой код без пропусков файлов.
  • В нашей документации появился раздел, описывающий работу с результатами анализа PVS-Studio в редакторе кода Visual Studio Code. Благодаря возможности преобразовать отчёт PVS-Studio в универсальный формат SARIF, этот отчёт можно теперь просматривать в Visual Studio Code с помощью расширения SARIF Viewer.
  • В документации PVS-Studio появился раздел про прямую интеграцию с системой автоматизации сборки CMake с помощью специализированного PVS-Studio модуля. Поддержана работа CMake модуля PVS-Studio на операционных системах Microsoft Windows, а также работа с suppress файлами.
  • Ещё один новый раздел документации PVS-Studio - интеграция статического анализа в платформу облачного CI GitHub Actions.
  • В C++ анализаторе для Visual Studio поддержана проверка проектов Microsoft GDK (Game Development Kit).
  • В утилите для преобразования отчётов plog-converter добавлена поддержка многострочной навигации для нескольких форматов: errorfile, tasklist, SARIF.
  • V1079. Parameter of 'std::stop_token' type is not used inside function's body.
  • V1080. Call of 'std::is_constant_evaluated' function always returns the same value.
  • V1081. Argument of abs() function is minimal negative value. Such absolute value can't be represented in two's complement. This leads to undefined behavior.
  • V1082. Function marked as 'noreturn' may return control. This will result in undefined behavior.
  • V5619. OWASP. Possible log injection. Potentially tainted data is written into logs.
  • V5620. OWASP. Possible LDAP injection. Potentially tainted data is used in a search filter.
  • V5621. OWASP. Error message contains potentially sensitive data that may be exposed.

PVS-Studio 7.17 (9 февраля 2022)

  • В анализатор PVS-Studio для языков C и C++ добавлена поддержка проверки проектов предназначенных для C6000-CGT - компилятора для встраиваемых систем от Texas Instruments. Полный список поддерживаемых PVS-Studio платформ и компиляторов можно посмотреть здесь.
  • Добавлена возможность напрямую работать с файлами подавления предупреждений (подавлять и сбрасывать подавление) в Unreal Engine проектах из IDE расширений PVS-Studio для Microsoft Visual Studio и JetBrains Rider. Подробнее про подавление сообщений в Unreal Engine проектах из командной стоки и с помощью IDE можно почитать в нашей документации (разделы 'Подавление предупреждений в Unreal Engine проектах' и 'Подавление предупреждений анализатора в плагинах PVS-Studio для CLion и Rider.').
  • В C# анализатор PVS-Studio добавлены новые аннотации для наиболее часто используемых классов из библиотек ASP.NET Core. Это позволит C# анализатору лучше понимать код, написанный для проектов, использующих ASP.NET.
  • В кроссплатформенных инструментах для анализа LLVM Compilation Database и трассировки вызовов и конвертации отчётов (plog-converter и pvs-studio-analyzer) частично изменён алгоритм генерации хэш-сумм, используемых в файлах подавления предупреждений в json формате. Поддерживается работа с файлами подавления старого формата в режиме обратной совместимости. При необходимости пополнения файлов подавления мы рекомендуем перегенерировать файлы подавления в новом формате. Данное изменение направлено на обеспечение, в предстоящих релизах PVS-Studio, полной кроссплатформенности json файлов подавления во всех сценариях работы анализатора.
  • V1077. Constructor contains potentially uninitialized members.
  • V1078. An empty container is iterated. The loop will not be executed.
  • V2017. String literal is identical to variable name. It is possible that the variable should be used instead of the string literal.
  • V3174. Suspicious subexpression in a sequence of similar comparisons.
  • V5617. OWASP. Assigning potentially negative or large value as timeout of HTTP session can lead to excessive session expiration time.
  • V5618. OWASP. Possible server-side request forgery. Potentially tainted data is used in the URL.

PVS-Studio 7.16 (8 декабря 2021)

  • В PVS-Studio добавлена поддержка Microsoft Visual Studio 2022. Анализатор можно использовать для работы с Visual C++ и C# проектами для новых версий компиляторов и стандартных C++ и .NET библиотек, которые стали доступны с новой версией данной IDE.
  • В C# анализаторе PVS-Studio добавлена поддержка платформы Microsoft .NET 6 для Windows, Linux и macOS, а также новой версии языка: C# 10.0.
  • Поддержка стандарта обеспечения безопасности и надёжности MISRA C в PVS-Studio доведена до 80%, полностью покрыта Mandatory, а также большая часть Required категорий. В предстоящих релизах мы планируем уделить больше внимания другим стандартам безопасности, а также диагностикам общего назначения.
  • Механизм отключения выдачи предупреждений на существующем коде (baseline разметка, подавление предупреждений) дополнен для работы с Unreal Engine проектами. В данном релизе baseline механизм можно использовать для UE проектов в версии анализатора PVS-Studio для командной строки. В следующей версии PVS-Studio также будет расширена поддержка подавления предупреждений при работе с UE проектами напрямую из сред разработки Microsoft Visual Studio и JetBrains Rider.
  • В документации появился новый раздел, в котором описано использование PVS-Studio для проверки проектов, позволяющих сгенерировать описание сборочного процесса в формате JSON Compilation Database. Данный метод подходит для проектов на основе CMake, QBS, Ninja, и т.п.
  • В плагинах PVS-Studio для JetBrains IDEA, Rider и CLion добавлена возможность переназначения shortcut'ов для наиболее часто используемых действий по проверке проектов и работе с результатами анализа.
  • V833. Using 'std::move' function with const object disables move semantics.
  • V1076. Code contains invisible characters that may alter its logic. Consider enabling the display of invisible characters in the code editor.
  • V2615. MISRA. A compatible declaration should be visible when an object or function with external linkage is defined.
  • V2616. MISRA. All conditional inclusion preprocessor directives should reside in the same file as the conditional inclusion directive to which they are related.
  • V2617. MISRA. Object should not be assigned or copied to an overlapping object.
  • V2618. MISRA. Identifiers declared in the same scope and name space should be distinct.
  • V2619. MISRA. Typedef names should be unique across all name spaces.
  • V2620. MISRA. Value of a composite expression should not be cast to a different essential type category or a wider essential type.
  • V2621. MISRA. Tag names should be unique across all name spaces.
  • V2622. MISRA. External object or function should be declared once in one and only one file.
  • V5616. OWASP. Possible command injection. Potentially tainted data is used to create OS command.

PVS-Studio 7.15 (7 октября 2021)

  • В Visual Studio плагине PVS-Studio появилась возможность легко посмотреть лучшие срабатывания анализатора среди найденных в проверенном проекте. Мы называем этот новый режим Analyzer Best Warnings. PVS-Studio всегда группировал срабатывания анализатора по 3-м уровням достоверности, и эти уровни традиционно использовались для приоритезации просмотра результатов анализа - все лучшие предупреждения должны попадать на 1-ый уровень. В новой версии анализатора мы разработали более точный алгоритм оценки достоверности предупреждений, использующий, помимо уровней, много дополнительных критериев - как статических (средняя "ценность" диагностики), так и динамических, основанных на срабатываниях анализатора на конкретной кодовой базе (как, например, частота обнаружения). В будущих релизах мы планируем расширять возможности нового режима оценки предупреждений, а также добавить его поддержку в другие IDE плагины и режимы интеграции анализа. Подробнее про работу режима Analyzer Best Warnings можно почитать в нашем блоге и документации.
  • На нашем сайте появилось сопоставление диагностик анализатора PVS-Studio со списком наиболее опасных и распространённых потенциальных уязвимостей CWE Top 25. Анализаторы PVS-Studio для языков C, C++, C# и Java покрывают уже более половины категорий в данном списке, и в будущих релизах мы планируем увеличивать процент его покрытия.
  • Улучшено качество анализа проектов для Unreal Engine - в C++ анализаторе PVS-Studio были дополнительно проаннотированы несколько сотен стандартных функций из этого игрового движка.
  • С этим релизом мы увеличили покрытие списка наиболее распространённых и опасных угроз защищённости приложений OWASP Top 10 2017 до 9-ти из 10-ти категорий. Таким образом, в данном списке осталась лишь одна не поддерживаемая в PVS-Studio категория - использование компонентов с известными уязвимостями. Данная категория относится к классу инструментов, известных, как SCA (Software Composition Analysis). В будущих релизах, для полного закрытия OWASP Top 10, мы планируем реализовать SCA в PVS-Studio C# анализаторе.
  • Поддержка стандарта обеспечения безопасности и надёжности MISRA C в PVS-Studio достигла 70%. До конца этого года мы планируем увеличить поддержку MISRA C не менее, чем до 80%.
  • В Visual Studio плагине добавлена возможность задавать shortcut'ы для операций подавления ложных срабатываний и разметки предупреждений.
  • В утилитах для конвертации отчётов поддержана генерация отчёта соответствия на основе стандарта MISRA Compliance. Подробнее про этот формат и генерацию отчёта о соответствии MISRA можно почитать в нашем блоге.
  • Очередная оптимизация производительности C# анализатора PVS-Studio позволит ускорить проверку крупных проектов за счёт значительного уменьшения времени подготовки (разбора) проекта перед анализом. Подробнее почитать про это можно в нашем блоге.
  • В C++ анализаторе PVS-Studio был стандартизован формат выдачи диапазона значений переменных для больших чисел. Изменение текста некоторых сообщений может привести к тому, что они вновь появятся в отчёте, хотя ранее были подавлены с помощью baselining механизма. Если вы столкнулись с этим - пожалуйста, подавите эти предупреждения заново.
  • V1075. The function expects the file to be opened in one mode, but it was opened in different mode.
  • V2604. MISRA. Features from <stdarg.h> should not be used.
  • V2605. MISRA. Features from <tgmath.h> should not be used.
  • V2606. MISRA. There should be no attempt to write to a stream that has been opened for reading.
  • V2607. MISRA. Inline functions should be declared with the static storage class.
  • V2608. MISRA. The 'static' storage class specifier should be used in all declarations of object and functions that have internal linkage.
  • V2609. MISRA. There should be no occurrence of undefined or critical unspecified behaviour.
  • V2610. MISRA. The ', " or \ characters and the /* or // character sequences should not occur in a header file name.
  • V2611. MISRA. Casts between a pointer to an incomplete type and any other type shouldn't be performed.
  • V2612. MISRA. Array element should not be initialized more than once.
  • V2613. MISRA. Operand that is a composite expression has more narrow essential type than the other operand.
  • V2614. MISRA. External identifiers should be distinct.
  • V3173. Possible incorrect initialization of variable. Consider verifying the initializer.
  • V3555. AUTOSAR. The 'static' storage class specifier should be used in all declarations of functions that have internal linkage.
  • V5612. OWASP. Do not use old versions of SSL/TLS protocols as it may cause security issues.
  • V5613. OWASP. Use of outdated cryptographic algorithm is not recommended.
  • V5614. OWASP. Potential XXE vulnerability. Insecure XML parser is used to process potentially tainted data.
  • V5615. OWASP. Potential XEE vulnerability. Insecure XML parser is used to process potentially tainted data.

PVS-Studio 7.14 (9 августа 2021)

  • PVS-Studio теперь можно удобно использовать в среде разработки JetBrains CLion с помощью плагина для данной IDE. Подробнее о том, с чем мы столкнулись при разработке CLion плагина, можно почитать в нашем блоге. А здесь можно посмотреть на все IDE от JetBrains, работу с которыми уже поддерживает PVS-Studio.
  • В С++ анализатор PVS-Studio добавлена поддержка межмодульного анализа. В этом режиме анализатор при разборе кода учитывает результаты вызовов методов, объявленных в других единицах трансляции. Межмодульный анализ также есть в C# (на уровне проектов) и Java (на уровне пакетов) анализаторах PVS-Studio. В С++ анализаторе данный режим не активирован по умолчанию, т.к. он может замедлять скорость анализа. В нашем блоге можно почитать подробнее об особенностях его реализации и работы.
  • Теперь PVS-Studio обеспечивает покрытие 6-ти из 10-ти категорий в OWASP Top 10 - списке наиболее распространённых и опасных угроз защищённости Web-приложений. В этом релизе мы добавили в анализатор диагностики для категорий A5 Broken Access Control, A7 Cross-Site Scripting (XSS) и A8 Insecure Deserialization. В будущих релизах в этом году мы планируем увеличить покрытие до 9-ти категорий.
  • Поддержка стандарта обеспечения безопасности и надёжности MISRA C в PVS-Studio составляет теперь 60%. В предстоящих релизах в этом году мы планируем увеличить поддержку этого стандарта как минимум до 80%, а также реализовать поддержку стандарта проверки соответствия кода MISRA C Compliance.
  • В плагин PVS-Studio для SonarQube добавлена поддержка версии SonarQube 8.9 LTS.
  • Скорость анализа в C# анализаторе PVS-Studio была увеличена до 2-х раз при анализе крупных (более 10 000 исходных файлов) проектов. Также C# анализатор теперь значительно эффективнее использует многоядерные процессоры. В нашем блоге мы поделились методиками, которые использовали для ускорения работы C# анализатора, и которые могут подойти и для других классов .NET приложений.
  • В C++ анализаторе PVS-Studio теперь можно отключать диагностические правила для заданного диапазона строк в исходном файле.
  • V2015. An identifier declared in an inner scope should not hide an identifier in an outer scope.
  • V2016. Consider inspecting the function call. The function was annotated as dangerous.
  • V2584. MISRA. Expression used in condition should have essential Boolean type.
  • V2585. MISRA. Casts between a void pointer and an arithmetic type should not be performed.
  • V2586. MISRA. Flexible array members should not be declared.
  • V2587. MISRA. The '//' and '/*' character sequences should not appear within comments.
  • V2588. MISRA. All memory or resources allocated dynamically should be explicitly released.
  • V2589. MISRA. Casts between a pointer and a non-integer arithmetic type should not be performed.
  • V2590. MISRA. Conversions should not be performed between pointer to function and any other type.
  • V2591. MISRA. Bit fields should only be declared with explicitly signed or unsigned integer type.
  • V2592. MISRA. An identifier declared in an inner scope should not hide an identifier in an outer scope.
  • V2593. MISRA. Single-bit bit fields should not be declared as signed type.
  • V2594. MISRA. Controlling expressions should not be invariant.
  • V2595. MISRA. Array size should be specified explicitly when array declaration uses designated initialization.
  • V2596. MISRA. The value of a composite expression should not be assigned to an object with wider essential type.
  • V2597. MISRA. Cast should not convert pointer to function to any other pointer type.
  • V2598. MISRA. Variable length array types are not allowed.
  • V2599. MISRA. The standard signal handling functions should not be used.
  • V2600. MISRA. The standard input/output functions should not be used.
  • V2601. MISRA. Functions should be declared in prototype form with named parameters.
  • V2602. MISRA. Octal and hexadecimal escape sequences should be terminated.
  • V2603. MISRA. The 'static' keyword shall not be used between [] in the declaration of an array parameter.
  • V3172. The 'if/if-else/for/while/foreach' statement and code block after it are not related. Inspect the program's logic.
  • V3552. AUTOSAR. Cast should not convert a pointer to a function to any other pointer type, including a pointer to function type.
  • V3553. AUTOSAR. The standard signal handling functions should not be used.
  • V3554. AUTOSAR. The standard input/output functions should not be used.
  • V5609. OWASP. Possible path traversal vulnerability. Potentially tainted data is used as a path.
  • V5610. OWASP. Possible XSS vulnerability. Potentially tainted data might be used to execute a malicious script.
  • V5611. OWASP. Potential insecure deserialization vulnerability. Potentially tainted data is used to create an object using deserialization.

PVS-Studio 7.13 (31 мая 2021)

  • C# анализатор PVS-Studio теперь поддерживает проверку проектов для платформы .NET 5. Подробнее про это можно прочитать в нашем блоге.
  • В C# анализаторе PVS-Studio появилась первое диагностическое правило из стандарта OWASP ASVS, ищущее в коде ошибки, связанные с непроверенными данными (tainted data): поиск потенциальных SQL инъекций (диагностическое правило V5608). Данный класс ошибок занимает важное место в рейтинге OWASP Top 10, и в будущих релизах PVS-Studio мы будем добавлять диагностические правила для поиска множества других видов потенциальных tainted data уязвимостей.
  • Утилита Blame Notifier для автоматической рассылки отчётов о найденных анализатором предупреждениях на основе blame информации из системы контроля версий теперь может сортировать предупреждения по номерам и датам коммитов. Это позволяет видеть предупреждения на код, появившиеся только за определённый день. Подробнее про новый режим работы можно почитать в нашем блоге.
  • Продолжая тему автоматической публикации отчётов, теперь можно это делать не только с помощью Blame Notifier. Наш пользователь написал легковесный аналог (не требующий .NET для работы) данной утилиты, который вы можете попробовать на GitHub.
  • В C++ анализаторе улучшена поддержка проверки Ninja проектов на Windows с использованием JSON Compilation Database (compile_commands.json).
  • Использование компилятора Clang для сборки C++ анализатора PVS-Studio позволило ускорить до 10% его работу при проверке исходных файлов на операционных системах Windows.
  • Плагин PVS-Studio для JetBrains Rider теперь поддерживает работу с версией Rider 2021.1.
  • В утилиту для проверки C++ и C# Visual Studio проектов PVS-Studio_Cmd.exe добавлена возможность передавать файл подавленных сообщений напрямую через командную строку. До этого подавленные сообщения можно было добавлять только на уровне проектов и solution'а.
  • V832. It's better to use '= default;' syntax instead of empty body.
  • V1070. Signed value is converted to an unsigned one with subsequent expansion to a larger type in ternary operator.
  • V1071. Consider inspecting the 'foo' function. The return value is not always used.
  • V1072. The buffer is securely cleared not on all execution paths.
  • V1073. Consider checking for misprints. Check the following code block after the 'if' statement.
  • V1074. Boundary between numeric escape sequence and string is unclear. The escape sequence ends with a letter and the next character is also a letter. Check for typos.
  • V2577. MISRA. The function argument corresponding to a parameter declared to have an array type should have an appropriate number of elements.
  • V2578. MISRA. An identifier with array type passed as a function argument should not decay to a pointer.
  • V2579. MISRA. Macro should not be defined with the same name as a keyword.
  • V2580. MISRA. The 'restrict' specifier should not be used.
  • V2581. MISRA. Single-line comments should not end with a continuation token.
  • V2582. MISRA. Block of memory should only be freed if it was allocated by a Standard Library function.
  • V2583. MISRA. Line whose first token is '#' should be a valid preprocessing directive.
  • V3170. Both operands of the '??' operator are identical.
  • V3171. Potentially negative value is used as the size of an array.
  • V3551. AUTOSAR. An identifier with array type passed as a function argument should not decay to a pointer.
  • V5013. OWASP. Storing credentials inside source code can lead to security issues.
  • V5608. OWASP. Possible SQL injection. Potentially tainted data is used to create SQL command.

PVS-Studio 7.12 (11 марта 2021)

  • Добавлено сопоставление диагностических правил PVS-Studio с рейтингом наиболее опасных угроз защищённости Web-приложений OWASP Top 10. Данный рейтинг основан на общем мнении экспертов по вопросам безопасности со всего мира и помогает разработчикам и экспертам по безопасности обнаруживать и своевременно устранять риски в разрабатываемых ими приложениях.
  • Расширены возможности для работы со стандартами обеспечения безопасности (MISRA C, MISRA C++, AUTOSAR C++ 14 Coding Guidelines) и защищённости (SEI CERT, OWASP ASVS). Теперь сопоставление диагностических правил анализатора с этими стандартами доступно не только в виде таблиц на наших web ресурсах, но также выдаётся во всех видах отчётов анализатора (XML, Json, HTML и т.д.), поддержано в IDE интеграциях PVS-Studio (Visual Studio, IntelliJ IDEA, Jetbrains Rider), плагине для SonarQube (тэги и раздел Security Category). Подробнее про новые возможности PVS-Studio для работы с данными стандартами можно почитать в нашем блоге.
  • Реализована поддержка ARM компилятора IAR и компилятора QNX для Linux версии C++ анализатора PVS-Studio
  • В утилиту для отслеживания вызовов C++ компилятора CLMonitor.exe добавлен режим проверки списка файлов с учётом зависимостей компиляции между исходными и заголовочными файлами. Данный режим можно использовать для автоматизации проверки merge и pull request'ов.
  • Добавлена возможность отключать отдельные диагностики и группы диагностик в .pvsconfig файлах и управляющих комментариях (только для C++ анализатора) в зависимости от уровней достоверности срабатываний. Подробнее об этом режиме можно прочитать в нашей документации (подраздел 'Полное отключение предупреждений').
  • Добавлена поддержка проверки проектов, использующих компилятор MPLAB XC8.
  • V1068. Do not define an unnamed namespace in a header file.
  • V1069. Do not concatenate string literals with different prefixes.
  • V2575. MISRA. The global namespace should only contain 'main', namespace declarations and 'extern "C"' declarations.
  • V2576. The identifier 'main' should not be used for a function other than the global function 'main'.
  • V3167. Parameter of 'CancellationToken' type is not used inside function's body.
  • V3168. Awaiting on expression with potential null value can lead to throwing of 'NullReferenceException'.
  • V3169. Suspicious return of a local reference variable which always equals null.
  • V3501. AUTOSAR. Octal constants should not be used.
  • V3502. AUTOSAR. Size of an array is not specified.
  • V3503. AUTOSAR. The 'goto' statement shouldn't jump to a label declared earlier.
  • V3504. AUTOSAR. The body of a loop\conditional statement should be enclosed in braces.
  • V3505. AUTOSAR. The function with the 'atof/atoi/atoll/atoll' name should not be used.
  • V3506. AUTOSAR. The function with the 'abort/exit/getenv/system' name should not be used.
  • V3507. AUTOSAR. The macro with the 'setjmp' name and the function with the 'longjmp' name should not be used.
  • V3508. AUTOSAR. Unbounded functions performing string operations should not be used.
  • V3509. AUTOSAR. Unions should not be used.
  • V3510. AUTOSAR. Declaration should contain no more than two levels of pointer nesting.
  • V3511. AUTOSAR. The 'if' ... 'else if' construct should be terminated with an 'else' statement.
  • V3512. AUTOSAR. Literal suffixes should not contain lowercase characters.
  • V3513. AUTOSAR. Every switch-clause should be terminated by an unconditional 'break' or 'throw' statement.
  • V3514. AUTOSAR. The 'switch' statement should have 'default' as the last label.
  • V3515. AUTOSAR. All integer constants of unsigned type should have 'u' or 'U' suffix.
  • V3516. AUTOSAR. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement.
  • V3517. AUTOSAR. The functions from time.h/ctime should not be used.
  • V3518. AUTOSAR. A switch-expression should not have Boolean type. Consider using of 'if-else' construct.
  • V3519. AUTOSAR. The comma operator should not be used.
  • V3520. AUTOSAR. Any label should be declared in the same block as 'goto' statement or in any block enclosing it.
  • V3521. AUTOSAR. The loop counter should not have floating-point type.
  • V3522. AUTOSAR. Unreachable code should not be present in the project.
  • V3523. AUTOSAR. Functions should not have unused parameters.
  • V3524. AUTOSAR. The value of uninitialized variable should not be used.
  • V3525. AUTOSAR. Function with a non-void return type should return a value from all exit paths.
  • V3526. AUTOSAR. Expression resulting from the macro expansion should be surrounded by parentheses.
  • V3527. AUTOSAR. The return value of non-void function should be used.
  • V3528. AUTOSAR. The address of an object with local scope should not be passed out of its scope.
  • V3529. AUTOSAR. Floating-point values should not be tested for equality or inequality.
  • V3530. AUTOSAR. Variable should be declared in a scope that minimizes its visibility.
  • V3531. AUTOSAR. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration.
  • V3532. AUTOSAR. Unary minus operator should not be applied to an expression of the unsigned type.
  • V3533. AUTOSAR. Expression containing increment (++) or decrement (--) should not have other side effects.
  • V3534. AUTOSAR. Incorrect shifting expression.
  • V3535. AUTOSAR. Operand of sizeof() operator should not have other side effects.
  • V3536. AUTOSAR. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified.
  • V3537. AUTOSAR. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array.
  • V3538. AUTOSAR. The result of an assignment expression should not be used.
  • V3539. AUTOSAR. Array indexing should be the only form of pointer arithmetic and it should be applied only to objects defined as an array type.
  • V3540. AUTOSAR. There should be no implicit integral-floating conversion.
  • V3541. AUTOSAR. A function should not call itself either directly or indirectly.
  • V3542. AUTOSAR. Constant expression evaluation should not result in an unsigned integer wrap-around.
  • V3543. AUTOSAR. Cast should not remove 'const' / 'volatile' qualification from the type that is pointed to by a pointer or a reference.
  • V3544. AUTOSAR. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded.
  • V3545. AUTOSAR. Operands of the logical '&&' or the '||' operators, the '!' operator should have 'bool' type.
  • V3546. AUTOSAR. Conversions between pointers to objects and integer types should not be performed.
  • V3547. AUTOSAR. Identifiers that start with '__' or '_[A-Z]' are reserved.
  • V3548. AUTOSAR. Functions should not be declared at block scope.
  • V3549. AUTOSAR. The global namespace should only contain 'main', namespace declarations and 'extern "C"' declarations.
  • V3550. AUTOSAR. The identifier 'main' should not be used for a function other than the global function 'main'.
  • V5001. OWASP. It is highly probable that the semicolon ';' is missing after 'return' keyword.
  • V5002. OWASP. An empty exception handler. Silent suppression of exceptions can hide the presence of bugs in source code during testing.
  • V5003. OWASP. The object was created but it is not being used. The 'throw' keyword could be missing.
  • V5004. OWASP. Consider inspecting the expression. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type.
  • V5005. OWASP. A value is being subtracted from the unsigned variable. This can result in an overflow. In such a case, the comparison operation can potentially behave unexpectedly.
  • V5006. OWASP. More than N bits are required to store the value, but the expression evaluates to the T type which can only hold K bits.
  • V5007. OWASP. Consider inspecting the loop expression. It is possible that the 'i' variable should be incremented instead of the 'n' variable.
  • V5008. OWASP. Classes should always be derived from std::exception (and alike) as 'public'.
  • V5009. OWASP. Unchecked tainted data is used in expression.
  • V5010. OWASP. The variable is incremented in the loop. Undefined behavior will occur in case of signed integer overflow.
  • V5011. OWASP. Possible overflow. Consider casting operands, not the result.
  • V5012. OWASP. Potentially unsafe double-checked locking.
  • V5301. OWASP. An exception handling block does not contain any code.
  • V5302. OWASP. Exception classes should be publicly accessible.
  • V5303. OWASP. The object was created but it is not being used. The 'throw' keyword could be missing.
  • V5304. OWASP. Unsafe double-checked locking.
  • V5305. OWASP. Storing credentials inside source code can lead to security issues.
  • V5601. OWASP. Storing credentials inside source code can lead to security issues.
  • V5602. OWASP. The object was created but it is not being used. The 'throw' keyword could be missing.
  • V5603. OWASP. The original exception object was swallowed. Stack of original exception could be lost.
  • V5604. OWASP. Potentially unsafe double-checked locking. Use volatile variable(s) or synchronization primitives to avoid this.
  • V5605. OWASP. Unsafe invocation of event, NullReferenceException is possible. Consider assigning event to a local variable before invoking it.
  • V5606. OWASP. An exception handling block does not contain any code.
  • V5607. OWASP. Exception classes should be publicly accessible.
  • V6102. Inconsistent synchronization of a field. Consider synchronizing the field on all usages.
  • V6103. Ignored InterruptedException could lead to delayed thread shutdown.
  • V6104. A pattern was detected: A || (A && ...). The expression is excessive or contains a logical error.
  • V6105. Consider inspecting the loop expression. It is possible that different variables are used inside initializer and iterator.
  • V6106. Casting expression to 'X' type before implicitly casting it to other type may be excessive or incorrect.

PVS-Studio 7.11 (17 декабря 2020)

  • Изменился порядок активации утилиты pvs-studio-analyzer для бесплатной версии PVS-Studio, требующей добавления комментариев в начало каждого исходного файла. Теперь перед первым запуском анализа необходимо ввести специальный лицензионный ключ командой pvs-studio-analyzer credentials PVS-Studio Free FREE-FREE-FREE-FREE.
  • Для более надёжной работы механизма массового подавления предупреждений был изменён расчёт хэша сообщения для случаев, когда строка кода, на которое было выдано сообщение, содержит нелатинские символы. Это возможно, например, когда строка кода содержит комментарий. Если подобные сообщения были ранее подавлены в suppress файлах, эти сообщения могут снова появиться в отчёте анализатора - такие сообщения потребуется подавить заново.
  • В утилите pvs-studio-analyzer добавлена поддержка компиляторов IAR Arm.
  • В утилите pvs-studio-analyzer добавлен перехват вызовов компиляторов через ld-linux.
  • V2574. MISRA. Functions shall not be declared at block scope.
  • V3165. The expression of the 'char' type is passed as an argument of the 'A' type whereas similar overload with the string parameter exists.
  • V3166. Calling the 'SingleOrDefault' method may lead to 'InvalidOperationException'.
  • V6100. An object is used as an argument to its own method. Consider checking the first actual argument of the 'Foo' method.
  • V6101. compareTo()-like methods can return not only the values -1, 0 and 1, but any values.

PVS-Studio 7.10 (5 ноября 2020)

  • Возможности PVS-Studio как SAST (Static Application Security Testing) инструмента были расширены началом работы над поддержкой стандартов OWASP ASVS и AUTOSAR C++14 Coding Guidelines. Стали доступны таблицы соответствия существующих диагностик анализатора этим стандартам. В будущих релизах анализатора мы будем расширять покрытие стандартов MISRA и AUTOSAR, а также реализовывать новые диагностические правила на основе списка наиболее распространённых и критичных уязвимостей OWASP Top 10.
  • В плагин PVS-Studio для JetBrains Rider добавлена поддержка работы с результатами анализа при проверке проектов для Unreal Engine (JetBrains Rider для Unreal Engine доступен сейчас по программе раннего доступа).
  • SonarQube плагин PVS-Studio теперь умеет ассоциировать сообщения анализатора, имеющие CWE (Common Weakness Enumeration) идентификатор, с сообщениями о дефектах защищённости на вкладке Security Category.
  • Утилиты для преобразования результатов анализа PVS-Studio (PlogConverter.exe для Windows и plog-converter для Linux\macOS) теперь поддерживают конвертацию в формат SARIF (Static Analysis Results Interchange Format). SARIF - это универсальный открытый формат для представления результатов работы инструментов, осуществляющих поиск ошибок, дефектов безопасности и защищённости. Этот формат поддерживается многими статическими анализаторами, и позволяет совместно использовать различные инструменты контроля качества кода в единых экосистемах.
  • V830. Decreased performance. Consider replacing the use of 'std::optional::value()' with either the '*' or '->' operator.
  • V831. Decreased performance. Consider replacing the call to the 'at()' method with the 'operator[]'.
  • V1064. The left operand of integer division is less than the right one. The result will always be zero.
  • V1065. Expression can be simplified: check similar operands.
  • V1066. The 'SysFreeString' function should be called only for objects of the 'BSTR' type.
  • V1067. Throwing from exception constructor may lead to unexpected behavior.
  • V3156. The argument of the method is not expected to be null.
  • V3157. Suspicious division. Absolute value of the left operand is less than the right operand.
  • V3158. Suspicious division. Absolute values of both operands are equal.
  • V3159. Modified value of the operand is not used after the increment/decrement operation.
  • V3160. Argument of incorrect type is passed to the 'Enum.HasFlag' method.
  • V3161. Comparing value type variables with 'ReferenceEquals' is incorrect because compared values will be boxed.
  • V3162. Suspicious return of an always empty collection.
  • V3163. An exception handling block does not contain any code.
  • V3164. Exception classes should be publicly accessible.
  • V6093. Automatic unboxing of a variable may cause NullPointerException.
  • V6094. The expression was implicitly cast from integer type to real type. Consider utilizing an explicit type cast to avoid the loss of a fractional part.
  • V6095. Thread.sleep() inside synchronized block/method may cause decreased performance.
  • V6096. An odd precise comparison. Consider using a comparison with defined precision: Math.abs(A - B) < Epsilon or Math.abs(A - B) > Epsilon.
  • V6097. Lowercase 'L' at the end of a long literal can be mistaken for '1'.
  • V6098. A method does not override another method from the base class.
  • V6099. The initial value of the index in the nested loop equals 'i'. Consider using 'i + 1' instead.

PVS-Studio 7.09 (27 августа 2020)

  • PVS-Studio включён в отчёт "Now Tech: Static Application Security Testing, Q3 2020" как SAST-специализированный инструмент. Использование методологии статического тестирования защищённости приложений (Static Application Security Testing, SAST) позволяет улучшить безопасность тестируемого приложения и смягчить влияние дефектов безопасности на его жизненный цикл. Forrester Research является одним из ведущих исследователей влияния развития инновационных технологий на бизнес. Отчёт об исследовании доступен для покупки подписчикам и клиентам Forrester Research.
  • В C# анализаторе PVS-Studio, для Visual Studio и Rider плагинов расширены возможности навигации по исходным файлам - для межпроцедурных срабатываний добавлена возможность перехода на потенциально опасные участки кода внутри методов, когда анализатор ругается на вызов такого метода.
  • Для C# анализатора PVS-Studio добавлена поддержка переопределения уровней значимости предупреждений в файлах настройки диагностик (.pvsconfig).
  • V012. Some warnings could have been disabled. Для C++ анализатора PVS-Studio добавлена возможность отображать в отчёте правила исключений из файлов настройки диагностик (.pvsconfig).
  • V826. Consider replacing standard container with a different one.
  • V827. Maximum size of a vector is known at compile time. Consider pre-allocating it by calling reserve(N).
  • V828. Decreased performance. Moving an object in a return statement prevents copy elision.
  • V829. Lifetime of the heap-allocated variable is limited to the current function's scope. Consider allocating it on the stack instead.
  • V1059. Macro name overrides a keyword/reserved name. This may lead to undefined behavior.
  • V1060. Passing 'BSTR ' to the 'SysAllocString' function may lead to incorrect object creation.
  • V1061. Extending 'std' or 'posix' namespace may result in undefined behavior.
  • V1062. Class defines a custom new or delete operator. The opposite operator must also be defined.
  • V1063. The modulo by 1 operation is meaningless. The result will always be zero.
  • V3154. The 'a % b' expression always evaluates to 0.
  • V3155. The expression is incorrect or it can be simplified.
  • V6082. Unsafe double-checked locking.
  • V6083. Serialization order of fields should be preserved during deserialization.
  • V6084. Suspicious return of an always empty collection.
  • V6085. An abnormality within similar comparisons. It is possible that a typo is present inside the expression.
  • V6086. Suspicious code formatting. 'else' keyword is probably missing.
  • V6087. InvalidClassException may occur during deserialization.
  • V6088. Result of this expression will be implicitly cast to 'Type'. Check if program logic handles it correctly.
  • V6089. It's possible that the line was commented out improperly, thus altering the program's operation logics.
  • V6090. Field 'A' is being used before it was initialized.
  • V6091. Suspicious getter/setter implementation. The 'A' field should probably be returned/assigned instead.
  • V6092. A resource is returned from try-with-resources statement. It will be closed before the method exits.

PVS-Studio 7.08 (18 июня 2020)

  • Анализатор PVS-Studio C# для .NET Framework и .NET Core проектов теперь доступен на операционных системах Linux и macOS.
  • Анализатор PVS-Studio C# теперь можно использовать вместе со средой разработки JetBrains Rider.
  • Анализатор PVS-Studio теперь можно легко попробовать на примерах C и C++ кода, без необходимости скачивать и устанавливать дистрибутив анализатора, с помощью интеграции с сервисом Compiler Explorer. Обратите внимание - сервис Compiler Explorer позволяет попробовать анализатор на небольшом, изолированном фрагменте кода или синтетическом примере. Для того, чтобы полноценно оценить возможности анализатора, скачайте и установите полную версию PVS-Studio.
  • Новый режим проверки списка файлов в утилите командной строки PVS-Studio_Cmd.exe на Windows теперь работает для C, C+ и C# файлов и умеет учитывать зависимости компиляции (исходных файлов от заголовочных файлов), что позволяет настраивать проверку pull и merge request'ов с помощью анализатора PVS-Studio.
  • Улучшена работа PVS-Studio C# при проверке Unity проектов - добавлены дополнительные аннотации для самых распространённых типов из библиотек Unity.
  • В утилиту для преобразования отчётов plog-converter (Linux, macOS) добавлена поддержка формата вывода для TeamCity.
  • В утилиту для автоматического оповещения разработчиков Blame Notifier добавлена поддержка системы контроля версий Perforce.
  • V824. It is recommended to use the 'make_unique/make_shared' function to create smart pointers.
  • V825. Expression is equivalent to moving one unique pointer to another. Consider using 'std::move' instead.
  • V1056. The predefined identifier '__func__' always contains the string 'operator()' inside function body of the overloaded 'operator()'.
  • V1057. Pseudo random sequence is the same at every program run. Consider assigning the seed to a value not known at compile-time.
  • V1058. Nonsensical comparison of two different functions' addresses.
  • V6078. Potential Java SE API compatibility issue.
  • V6079. Value of variable is checked after use. Potential logical error is present. Check lines: N1, N2.
  • V6080. Consider checking for misprints. It's possible that an assigned variable should be checked in the next condition.
  • V6081. Annotation that does not have 'RUNTIME' retention policy will not be accessible through Reflection API.

PVS-Studio 7.07 (16 апреля 2020)

  • В С++ анализаторе PVS-Studio добавлен синтаксический разбор концептов. Концепты - интерфейсное расширение шаблонов языка C++, введенное стандартом C++20. Исправлена ошибка V003, возникавшая при использовании концептов в проверяемом коде.
  • SonarQube плагин PVS-Studio теперь поддерживает работу в macOS.
  • В утилите для преобразования XML отчётов анализатора (PlogConverter) добавлена поддержка формата для Continuous Integration сервера TeamCity.
  • В command line анализаторе Visual Studio \ MSBuild проектов (PVS-Studio_Cmd.exe) добавлена возможность указывать и исключать из анализа отдельные проекты из командной строки, через флаги ‑‑selectProjects / ‑‑excludeProjects.
  • Исправлено зависание Visual Studio плагина PVS-Studio, вызванное повторной инициализацией плагина при открытии solution файла в IDE.
  • V1053. Calling the 'foo' virtual function in the constructor/destructor may lead to unexpected result at runtime.
  • V1054. Object slicing. Derived class object was copied to the base class object.
  • V1055. The 'sizeof' expression returns the size of the container type, not the number of elements. Consider using the 'size()' function.
  • V2573. MISRA. Identifiers that start with '__' or '_[A-Z]' are reserved.

PVS-Studio 7.06 (27 февраля 2020)

  • PVS-Studio теперь можно использовать совместно с кросс-платформенной IDE для embedded разработки PlatformIO. Подробнее про настройку PVS-Studio в PlatformIO можно почитать здесь.
  • Оптимизировано выделение памяти C# анализатором PVS-Studio, что может давать ускорение анализа при проверке крупных проектов.
  • В C# анализаторе PVS-Studio добавлены опции ‑‑excludeDefines / ‑‑appendDefines, позволяющие исключать/добавлять символы препроцессора, которые будут использоваться при анализе.
  • C# анализатор PVS-Studio теперь понимает Unity-специфичные проверки переменных на null через их неявное преобразование к типу bool.
  • V823. Decreased performance. Object may be created in-place in a container. Consider replacing methods: 'insert' -> 'emplace', 'push_*' -> 'emplace_*'.
  • V1050. The uninitialized class member is used when initializing the base class.
  • V1051. Consider checking for misprints. It's possible that an assigned variable should be checked in the next condition.
  • V1052. Declaring virtual methods in a class marked as 'final' is pointless.
  • V2562. MISRA. Expressions with pointer type should not be used in the '+', '-', '+=' and '-=' operations.
  • V2563. MISRA. Array indexing should be the only form of pointer arithmetic and it should be applied only to objects defined as an array type.
  • V2564. MISRA. There should be no implicit integral-floating conversion.
  • V2565. MISRA. A function should not call itself either directly or indirectly.
  • V2566. MISRA. Constant expression evaluation should not result in an unsigned integer wrap-around.
  • V2567. MISRA. Cast should not remove 'const' / 'volatile' qualification from the type that is pointed to by a pointer or a reference.
  • V2568. MISRA. Both operands of an operator should be of the same type category.
  • V2569. MISRA. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded.
  • V2570. MISRA. Operands of the logical '&&' or the '||' operators, the '!' operator should have 'bool' type.
  • V2571. MISRA. Conversions between pointers to objects and integer types should not be performed.
  • V2572. MISRA. Value of the expression should not be converted to the different essential type or the narrower essential type.
  • V3150. Loop break conditions do not depend on the number of iterations.
  • V3151. Potential division by zero. Variable was used as a divisor before it was compared to zero. Check lines: N1, N2.
  • V3152. Potential division by zero. Variable was compared to zero before it was used as a divisor. Check lines: N1, N2.
  • V3153. Dereferencing the result of null-conditional access operator can lead to NullReferenceException. Consider removing parentheses around null-conditional access expression.
  • V6077. Label is present inside a switch(). It is possible that these are misprints and 'default:' operator should be used instead.

PVS-Studio 7.05 (10 декабря 2019)

  • Утилита для оповещения разработчиков о результатах анализа Blame Notifier теперь доступна на всех поддерживаемых анализатором платформах (Windows, Linux, macOS). Blame Notifier использует информацию из системы контроля версий (SVN, Git, Mercurial) для определения человека, написавшего код, на который анализатор выдаёт сообщение.
  • PVS-Studio теперь можно установить с помощью менеджера пакетов Chocolatey.
  • Добавлена поддержка проверки проектов .NET Core 3 и 3.1 для C# анализатора.
  • В Windows версии анализатора появилась возможность задавать исключённые из анализа директории на уровне конкретного Visual Studio проекта или solution'а с помощью .pvsconfig файлов.
  • Оптимизирован расход памяти C# анализатором PVS-Studio при проверке крупных проектов.
  • V822. Decreased performance. A new object is created, while a reference to an object is expected.
  • V1044. Loop break conditions do not depend on the number of iterations.
  • V1045. The DllMain function throws an exception. Consider wrapping the throw operator in a try..catch block.
  • V1046. Unsafe usage of the 'bool' and integer types together in the operation '&='.
  • V1047. Lifetime of the lambda is greater than lifetime of the local variable captured by reference.
  • V1048. Variable 'foo' was assigned the same value.
  • V1049. The 'foo' include guard is already defined in the 'bar1.h' header. The 'bar2.h' header will be excluded from compilation.
  • V2558. MISRA. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified.
  • V2559. MISRA. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array.
  • V2560. MISRA. There should be no user-defined variadic functions.
  • V2561. MISRA. The result of an assignment expression should not be used.
  • V3146. Possible null dereference. A method can return default null value.
  • V3147. Non-atomic modification of volatile variable.
  • V3148. Casting potential 'null' value to a value type can lead to NullReferenceException.
  • V3149. Dereferencing the result of 'as' operator can lead to NullReferenceException.
  • V6072. Two similar code fragments were found. Perhaps, this is a typo and 'X' variable should be used instead of 'Y'.
  • V6073. It is not recommended to return null or throw exceptions from 'toString' / 'clone' methods.
  • V6074. Non-atomic modification of volatile variable.
  • V6075. The signature of method 'X' does not conform to serialization requirements.
  • V6076. Recurrent serialization will use cached object state from first serialization.

PVS-Studio 7.04 (4 сентября 2019)

  • Добавлена поддержка IntelliJ IDEA версии 192 в PVS-Studio плагине для этой IDE.
  • В PVS-Studio плагины для Visual Studio добавлена возможность автоматической загрузки логов анализа при проверке Unreal Engine проектов.
  • Добавлена возможность проверки C# проектов под .NET Core 3 Preview.
  • В C# анализаторе добавлено вычисление возвращаемых значений async методов, а также get и set методов у свойств.
  • В утилите для отслеживания запусков компиляторов на Windows добавлена возможность отслеживать только дочерние процессы у заданного процесса.
  • В утилите для отслеживания запусков компиляторов на Linux добавлен режим работы с игнорированием ccache кэша.
  • Плагин для отображения результатов анализа PVS-Studio в Jenkins теперь можно также использовать на Linux\macOS хостах (раньше он был доступен только для Windows)
  • Добавлена поддержка SonarQube 7.9 LTS в плагине PVS-Studio для SonarQube.
  • V1040. Possible typo in the spelling of a pre-defined macro name.
  • V1041. Class member is initialized with dangling reference.
  • V1042. This file is marked with copyleft license, which requires you to open the derived source code.
  • V1043. A global object variable is declared in the header. Multiple copies of it will be created in all translation units that include this header file.
  • V2551. MISRA. Variable should be declared in a scope that minimizes its visibility.
  • V2552. MISRA. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration.
  • V2553. MISRA. Unary minus operator should not be applied to an expression of the unsigned type.
  • V2554. MISRA. Expression containing increment (++) or decrement (--) should not have other side effects.
  • V2555. MISRA. Incorrect shifting expression.
  • V2556. MISRA. Use of a pointer to FILE when the associated stream has already been closed.
  • V2557. MISRA. Operand of sizeof() operator should not have other side effects.
  • V3140. Property accessors use different backing fields.
  • V3141. Expression under 'throw' is a potential null, which can lead to NullReferenceException.
  • V3142. Unreachable code detected. It is possible that an error is present.
  • V3143. The 'value' parameter is rewritten inside a property setter, and is not used after that.
  • V3144. This file is marked with copyleft license, which requires you to open the derived source code.
  • V3145. Unsafe dereference of a WeakReference target. The object could have been garbage collected before the 'Target' property was accessed.
  • V6068. Suspicious use of BigDecimal class.
  • V6069. Unsigned right shift assignment of negative 'byte' / 'short' value.
  • V6070. Unsafe synchronization on an object.
  • V6071. This file is marked with copyleft license, which requires you to open the derived source code.

PVS-Studio 7.03 (25 июня 2019)

  • В документации анализатора PVS-Studio теперь доступен раздел по использованию анализатора в контейнерах с помощью Docker.
  • Добавлена поддержка проверки проектов для QNX Momentics, компилятора QCC.
  • V1038. It's odd that a char or string literal is added to a pointer.
  • V1039. Character escape is used in multicharacter literal. This causes implementation-defined behavior.
  • V2543. MISRA. Value of the essential character type should be used appropriately in the addition/subtraction operations.
  • V2544. MISRA. Values of the essential appropriate types should be used at expressions.
  • V2545. MISRA. Conversion between pointers of different object types should not be performed.
  • V2546. MISRA. Expression resulting from the macro expansion should be surrounded by parentheses.
  • V2547. MISRA. The return value of non-void function should be used.
  • V2548. MISRA. The address of an object with local scope should not be passed out of its scope.
  • V2549. MISRA. Pointer to FILE should not be dereferenced.
  • V2550. MISRA. Floating-point values should not be tested for equality or inequality.
  • V3138. String literal contains potential interpolated expression.
  • V3139. Two or more case-branches perform the same actions.
  • V6067. Two or more case-branches perform the same actions.

PVS-Studio 7.02 (25 апреля 2019)

  • В PVS-Studio появилась поддержка Visual Studio 2019. Visual C++, .NET Framework и .NET Core C# проекты Visual Studio 2019 можно проверять как из самой IDE, так и из командной строки с помощью утилиты PVS-Studio_Cmd.exe.
  • Добавлена поддержка нового синтаксиса из C# 8.0 в PVS-Studio C# анализатор.
  • PVS-Studio C# теперь может видеть потенциальные разыменования нулевых ссылок (диагностика V3080) внутри тел методов, когда значение потенциального null'а передаётся в качестве аргумента метода.
  • Плагин PVS-Studio Java анализатора для IntelliJ IDEA теперь доступен в официальном репозитории плагинов JetBrains. Также плагин для IDEA теперь можно установить с помощью нашего Windows инсталлятора.
  • В PVS-Studio Java плагины для IDEA, Maven и Gradle добавлен режим массового подавления предупреждений, который можно использовать для скрытия предупреждений на старом коде при внедрении анализатора в процесс разработки.
  • Исправлена работа Compiler Monitoring на Windows при отслеживании сборки, запущенной из под Keil uVision в случае, когда имя пользователя в системе содержит нелатинские символы.
  • V1037. Two or more case-branches perform the same actions.
  • V2530. MISRA. The loop should be terminated with no more than one 'break' or 'goto' statement.
  • V2531. MISRA. Expression of the essential 'foo' type should not be cast to the essential 'bar' type.
  • V2532. MISRA. String literal should not be assigned to object unless it has type of pointer to const-qualified char.
  • V2533. MISRA. C-style and functional notation casts should not be performed.
  • V2534. MISRA. The loop counter should not have floating-point type.
  • V2535. MISRA. Unreachable code should not be present in the project.
  • V2536. MISRA. Function should not contain labels not used by any 'goto' statements.
  • V2537. MISRA. Functions should not have unused parameters.
  • V2538. MISRA. The value of uninitialized variable should not be used.
  • V2539. MISRA. Class destructor should not exit with an exception.
  • V2540. MISRA. Arrays should not be partially initialized.
  • V2541. MISRA. Function should not be declared implicitly.
  • V2542. MISRA. Function with a non-void return type should return a value from all exit paths.

PVS-Studio 7.01 (13 марта 2019)

  • Ограничений количества переходов по сообщениям анализатора в Visual Studio в trial больше нет! В PVS-Studio для Windows теперь используется общая с остальными платформами trial модель - вы можете получить полнофункциональную лицензию, заполнив форму на странице загрузки анализатора.
  • PVS-Studio C# диагностика V3080 (разыменование нулевой ссылки) теперь умеет находить потенциальные разыменования ссылок, которые могут принимать значение null в одной из веток выполнения. Улучшен межпроцедурный анализ.
  • В Visual Studio плагине PVS-Studio добавлена возможность при работе с проектами, хранящимися в TFVC (Team Foundation Version Control), делать автоматический checkout suppress файлов (режим включается в Options... > Specific Analzyer Settings).
  • V1036. Potentially unsafe double-checked locking.
  • V2529. MISRA. Any label should be declared in the same block as 'goto' statement or in any block enclosing it.

PVS-Studio 7.00 (16 января 2019)

  • В PVS-Studio версии 7.00 появился статический анализатор для Java. Подробнее обо всех нововведениях в PVS-Studio 7.00 можно почитать в нашем блоге.
  • Плагин PVS-Studio для SonarQube обновлён для поддержки последней версии SonarQube 7.4. Минимальная версия SonarQube, поддерживаемая последней версией PVS-Studio плагина, увеличена до LTS версии SonarQube 6.7.
  • V2526. MISRA. The function with the 'clock/time/difftime/ctime/ asctime/gmtime/localtime/mktime' name should not be used.
  • V2527. MISRA. A switch-expression should not have Boolean type. Consider using of 'if-else' construct.
  • V2528. MISRA. The comma operator should not be used.
  • V6001. There are identical sub-expressions to the left and to the right of the 'foo' operator.
  • V6002. The switch statement does not cover all values of the enum.
  • V6003. The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence.
  • V6004. The 'then' statement is equivalent to the 'else' statement.
  • V6005. The 'x' variable is assigned to itself.
  • V6006. The object was created but it is not being used. The 'throw' keyword could be missing.
  • V6007. Expression is always true/false.
  • V6008. Potential null dereference.
  • V6009. Function receives an odd argument.
  • V6010. The return value of function 'Foo' is required to be utilized.
  • V6011. The expression contains a suspicious mix of integer and real types
  • V6012. The '?:' operator, regardless of its conditional expression, always returns one and the same value.
  • V6013. Comparison of arrays, strings, collections by reference. Possibly an equality comparison was intended.
  • V6014. It's odd that this method always returns one and the same value of NN.
  • V6015. Consider inspecting the expression. Probably the '!='/'-='/'+=' should be used here.
  • V6016. Suspicious access to element by a constant index inside a loop.
  • V6017. The 'X' counter is not used inside a nested loop. Consider inspecting usage of 'Y' counter.
  • V6018. Constant expression in switch statement.
  • V6019. Unreachable code detected. It is possible that an error is present.
  • V6020. Division or mod division by zero.
  • V6021. The value is assigned to the 'x' variable but is not used.
  • V6022. Parameter is not used inside method's body.
  • V6023. Parameter 'A' is always rewritten in method body before being used.
  • V6024. The 'continue' operator will terminate 'do { ... } while (false)' loop because the condition is always false.
  • V6025. Possibly index is out of bound.
  • V6026. This value is already assigned to the 'b' variable.
  • V6027. Variables are initialized through the call to the same function. It's probably an error or un-optimized code.
  • V6028. Identical expressions to the left and to the right of compound assignment.
  • V6029. Possible incorrect order of arguments passed to method.
  • V6030. The function located to the right of the '|' and '&' operators will be called regardless of the value of the left operand. Consider using '||' and '&&' instead.
  • V6031. The variable 'X' is being used for this loop and for the outer loop.
  • V6032. It is odd that the body of 'Foo_1' function is fully equivalent to the body of 'Foo_2' function.
  • V6033. An item with the same key has already been added.
  • V6034. Shift by N bits is inconsistent with the size of type.
  • V6035. Double negation is present in the expression: !!x.
  • V6036. The value from the uninitialized optional is used.
  • V6037. An unconditional 'break/continue/return/goto' within a loop.
  • V6038. Comparison with 'double.NaN' is meaningless. Use 'double.isNaN()' method instead.
  • V6039. There are two 'if' statements with identical conditional expressions. The first 'if' statement contains method return. This means that the second 'if' statement is senseless.
  • V6040. The code's operational logic does not correspond with its formatting.
  • V6041. Suspicious assignment inside the conditional expression of 'if/while/do...while' statement.
  • V6042. The expression is checked for compatibility with type 'A', but is cast to type 'B'.
  • V6043. Consider inspecting the 'for' operator. Initial and final values of the iterator are the same.
  • V6044. Postfix increment/decrement is senseless because this variable is overwritten.
  • V6045. Suspicious subexpression in a sequence of similar comparisons.
  • V6046. Incorrect format. Consider checking the N format items of the 'Foo' function.
  • V6047. It is possible that this 'else' branch must apply to the previous 'if' statement.
  • V6048. This expression can be simplified. One of the operands in the operation equals NN. Probably it is a mistake.
  • V6049. Classes that define 'equals' method must also define 'hashCode' method.
  • V6050. Class initialization cycle is present.
  • V6051. Use of jump statements in 'finally' block can lead to the loss of unhandled exceptions.
  • V6052. Calling an overridden method in parent-class constructor may lead to use of uninitialized data.
  • V6053. Collection is modified while iteration is in progress. ConcurrentModificationException may occur.
  • V6054. Classes should not be compared by their name.
  • V6055. Expression inside assert statement can change object's state.
  • V6056. Implementation of 'compareTo' overloads the method from a base class. Possibly, an override was intended.
  • V6057. Consider inspecting this expression. The expression is excessive or contains a misprint.
  • V6058. The 'X' function receives objects of incompatible types.
  • V6059. Odd use of special character in regular expression. Possibly, it was intended to be escaped.
  • V6060. The reference was used before it was verified against null.
  • V6061. The used constant value is represented by an octal form.
  • V6062. Possible infinite recursion.
  • V6063. Odd semicolon ';' after 'if/foreach' operator.
  • V6064. Suspicious invocation of Thread.run().
  • V6065. A non-serializable class should not be serialized.
  • V6066. Passing objects of incompatible types to the method of collection.

Старая история версий

Старую историю версий для прошлых релизов смотрите здесь.

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