## BUG: Warning C4713: grammar.c:1.147, Line 180, ++ in Fcn Call

Q102689

    7.00   | 1.00 1.50
    MS-DOS | WINDOWS
    kbtool kbbuglist

    ----------------------------------------------------------------------
    The information in this article applies to:

     - The Microsoft C/C++ Compiler (CL.EXE), included with:

        - Microsoft C/C++ for MS-DOS, versions 7.0
        - Microsoft Visual C++ for Windows, versions 1.0 and 1.5
    ----------------------------------------------------------------------

    SYMPTOMS
    ========

    An attempt to compile code that uses the postincrement (++) operator in a
    function parameter list fails and Microsoft C/C++ generates one of the
    following messages. In Microsoft C/C++ version 8.0c:

       warning C4713: test: internal compiler error; restarting
                    (compiler file '@(#)grammar.c:1.147', line 192)

    In Microsoft C/C++ version 8.0:

       warning C4713: test: internal compiler error; restarting
          (compiler file '@(#)grammar.c:1.147', line 180)

    In Microsoft C/C++ version 7.0:

       warning C4713: test: INTERNAL COMPILER ERROR; restarting
          (compiler file '@(#)grammar.c:1.147', line 179)
          Contact Microsoft Product Support Services

    CAUSE
    =====

    The warnings indicate that because the code could not be compiled
    successfully with the specified optimizations, the compiler restarted
    compilation with global optimizations disabled. The compiler generates
    correct code that uses only local optimizations.

    RESOLUTION
    ==========

    Perform one of the following two steps to resolve these warnings:

     - Modify the compiler command line to remove the /Oe option switch.

       -or-

     - Modify the source code to move the autoincrement operator outside
       the function call.

    STATUS
    ======

    Microsoft has confirmed this to be a problem in Microsoft C/C++
    versions 7.0, 8.0, and 8.0c for MS-DOS. We are researching this problem
    and will post new information here in the Microsoft Knowledge Base
    as it becomes available.

    This is not a problem in Visual C++ 32-bit Edition.

    MORE INFORMATION
    ================

    The following code example demonstrates this problem:

    Sample Code
    -----------

    /*
     * Compiler options needed: /c /Oe
     */

    void tryit(char _far *, int);

    void test(void)
    {
       char _far *ptr;

       switch (2)
          {
       case 2:
          tryit(ptr++, 1);
          ++ptr;
          break;
          }
    }

    Additional reference words: 1.00 1.50 7.00 8.00 8.00c
    KBCategory: kbtool kbbuglist
    KBSubcategory: CLIss

Keywords : kb16bitonly
Issue type : kbbug
Technology : kbVCsearch kbAudDeveloper kbCVCComp

Last Reviewed: May 5, 2001 © 2001 Microsoft Corporation. All rights reserved. Terms of Use.