Примеры ошибок, обнаруженных с помощью диагностики V3041

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.

Sony ATF

V3041 The expression was implicitly cast from 'int' type to 'float' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. Atf.Gui.OpenGL.vs2010 ArcBallCameraController.cs 216

private Vec3F ProjectToArcball(Point point)
{
  float x = (float)point.X / (m_width / 2);   // <=

  float y = (float)point.Y / (m_height / 2);  // <=

  x = x - 1;
  y = 1 - y;
  if (x < -1)
    x = -1;
  else if (x > 1)
    x = 1;
  if (y < -1)
    y = -1;
  else if (y > 1)
    y = 1;
  ....
}

Similar errors can be found in some other places:

• V3041 The expression was implicitly cast from 'int' type to 'float' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. Atf.Gui.OpenGL.vs2010 ArcBallCameraController.cs 217

Xenko

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. SiliconStudio.TextureConverter AtlasTexLibrary.cs 422

private void QuickSort(List<TexImage> list, int left, int right)
{
  int i = left;
  int j = right;
  double pivotValue = ((left + right) / 2);
  int x = list[(int)pivotValue].DataSize;
  ....
}

Accord.Net

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. Accord.Audio Tools.cs 158

public static double GetSpectralResolution(int samplingRate,
                                           int samples)
{
  return samplingRate / samples;
}

Accord.Net

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. Accord.Math Tools.cs 137

public static int GreatestCommonDivisor(int a, int b)
{
  int x = a - b * (int)Math.Floor((double)(a / b));
  while (x != 0)
  {
    a = b;
    b = x;
    x = a - b * (int)Math.Floor((double)(a / b));
  }
  return b;
}

Similar errors can be found in some other places:

• V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. Accord.Math Tools.cs 142

MSBuild

V3041 The expression was implicitly cast from 'long' type to 'float' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. CommunicationsUtilities.cs 615

private static long s_lastLoggedTicks = DateTime.UtcNow.Ticks;
....
internal static void Trace(....)
{
  ....
  long now = DateTime.UtcNow.Ticks;

  float millisecondsSinceLastLog =
    (float)((now - s_lastLoggedTicks)/10000L);
  ....
}

Infer.NET

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. LDA Utilities.cs 74

public static void CreateTrueThetaAndPhi(....)
{
  ....
  double expectedRepeatOfTopicInDoc = averageDocLength / numUniqueTopicsPerDoc;
  ....
  int cnt = Poisson.Sample(expectedRepeatOfTopicInDoc);
  ....
}

Infer.NET

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. Runtime ProductExp.cs 137

public static NonconjugateGaussian BAverageLogarithm(....)
{
  ....
  double v_opt = 2 / 3 * (Math.Log(mx * mz / Ex2 / 2) - m);
  if (v_opt != v)
  {
    ....
  }
  ....
}

ShareX

V3041 [CWE-682] The expression was implicitly cast from 'int' type to 'float' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. ImageHelpers.cs 1119

public static void Pixelate(Bitmap bmp, int pixelSize)
{
  ....
  float r = 0, g = 0, b = 0, a = 0;
  float weightedCount = 0;

  for (int y2 = y; y2 < yLimit; y2++)
  {
    for (int x2 = x; x2 < xLimit; x2++)
    {
      ColorBgra color = unsafeBitmap.GetPixel(x2, y2);

      float pixelWeight = color.Alpha / 255; // <=

      r += color.Red * pixelWeight;
      g += color.Green * pixelWeight;
      b += color.Blue * pixelWeight;
      a += color.Alpha * pixelWeight;

      weightedCount += pixelWeight;
    }
  }
  ....
  ColorBgra averageColor = new ColorBgra((byte)(b / weightedCount),
    (byte)(g / weightedCount), (byte)(r / weightedCount),
    (byte)(a / pixelCount));
  ....
}

Emby

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. LiveTvManager.cs 1085

private async Task RefreshChannelsInternal(....)
{
  ....
  double progressPerService = _services.Length == 0
                ? 0
                : 1 / _services.Length;
  ....
}

RunUO

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. StormsEye.cs 87

public static void Gain( Mobile from, Skill skill )
{
  ....
  if ( from.Player &&
     ( skills.Total / skills.Cap ) >= Utility.RandomDouble())
  ....
}

MonoGame

V3041 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid the loss of a fractional part. An example: double A = (double)(X) / Y;. MonoGame.Framework.DesktopGL(netstandard2.0) VorbisFloor.cs 113

class Floor0 : VorbisFloor
{
  int _rate;
  ....
  int[] SynthesizeBarkCurve(int n)
  {
    var scale = _bark_map_size / toBARK(_rate / 2);
    ....
  }
}