Compiler Warning (level 3) CS0642

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Possible mistaken empty statement

A semicolon after a conditional statement may cause your code to execute differently than intended.

You can use /nowarn compiler option or #pragmas warning to disable this warning; see /nowarn (Suppress Specified Warnings) (C# Compiler Options) or #pragma warning (C# Reference) for more information.

The following sample generates CS0642:

// CS0642.cs
// compile with: /W:3
class MyClass
{
   public static void Main()
   {
      int i;

      for (i = 0; i < 10; i += 1);   // CS0642 semicolon intentional?
      {
         System.Console.WriteLine (i);
      }
   }
}