Examples of errors detected by the V3038 diagnostic


V3038. The argument was passed to method several times. It is possible that another argument should be passed instead.


SharpDevelop

V3038 The first argument of 'Replace' function is equal to the second argument. ReflectionDisassembler.cs 349


void
WriteSecurityDeclarationArgument(CustomAttributeNamedArgument na)
{
  ....
  output.Write("string('{0}')",
    NRefactory.CSharp.TextWriterTokenWriter.
    ConvertString((string)na.Argument.Value).Replace("'", "\'"));
  ....
}

Correct version: Replace("'", "\\'") There is exactly the same bug in the 'Xamarin.Forms' project.


Xamarin.Forms

V3038 The first argument of 'Replace' function is equal to the second argument. ICSharpCode.Decompiler ReflectionDisassembler.cs 349


void WriteSecurityDeclarationArgument(
         CustomAttributeNamedArgument na)
{
  ....
  output.Write("string('{0}')",
    NRefactory.CSharp
              .TextWriterTokenWriter
              .ConvertString(
                (string)na.Argument.Value).Replace("'", "\'"));
  ....
}

There is exactly the same bug in the 'SharpDevelop' project.


PascalABC.NET

V3038 The 'enum_consts[i]' argument was passed to 'Compare' method several times. It is possible that other argument should be passed instead. CodeCompletion SymTable.cs 2206


private List<string> enum_consts = new List<string>();
public override bool IsEqual(SymScope ts)
{
  EnumScope es = ts as EnumScope;
  if (es == null) return false;
  if (enum_consts.Count != es.enum_consts.Count) return false;
  for (int i = 0; i < es.enum_consts.Count; i++)
    if (string.Compare(enum_consts[i],
                       this.enum_consts[i], true) != 0)  // <=
      return false;
  return true;
}

OpenCvSharp

V3038 The argument was passed to method several times. It is possible that other argument should be passed instead. Cv2_photo.cs 124


public static void FastNlMeansDenoisingMulti(....)
{
  ....
  NativeMethods.photo_fastNlMeansDenoisingMulti(
    srcImgPtrs,
    srcImgPtrs.Length,
    dst.CvPtr,
    imgToDenoiseIndex,
    templateWindowSize,
    h,
    templateWindowSize,
    searchWindowSize);
  ....
}

public static extern void photo_fastNlMeansDenoisingMulti(
  IntPtr[] srcImgs,
  int srcImgsLength,
  IntPtr dst,
  int imgToDenoiseIndex,
  int temporalWindowSize,
  float h,
  int templateWindowSize,
  int searchWindowSize)

Similar errors can be found in some other places:

  • V3038 The argument was passed to method several times. It is possible that other argument should be passed instead. Cv2_photo.cs 149
  • V3038 The argument was passed to method several times. It is possible that other argument should be passed instead. Cv2_photo.cs 180
  • V3038 The argument was passed to method several times. It is possible that other argument should be passed instead. Cv2_photo.cs 205


Bugs Found

Checked Projects
363
Collected Errors
13 495