PRB: C1004 or C1060 Error Generated by Inline _asm Call

• The Microsoft C/C++ Compiler (CL.EXE) included with: - Microsoft Visual C++, 32-bit Edition, versions 2.0, 2.1, 2.2, 4.0,

       4.1, 5.0 on the following platform:
       - x86
  

SYMPTOMS

A C1004 (Unexpected End of File) or C1060 (Compiler is out of heap space) error may occur when comments are misused within inline assembly code.

STATUS

This behavior is by design.

MORE INFORMATION

Semicolons are used in assembly code to begin source comments. They behave exactly the same way as using the C++ comment specifier (//). All text following a semicolon is considered to be a comment. Comments terminate at the end of the current line.

Sample Code

   void main(void)
   {
      _asm { int 3; }    // The closing curly brace is ignored because it's
                         // part of the assembly comment line

      _asm {             // This code works because no valid code follows
         int 3;          // the semicolon comment specifier
      }

      _asm { int 3 }     // This also works and is valid code
   }