FIX: C1001: reg86.c, line 4479, 4600

The information in this article applies to:

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

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

SYMPTOMS

The compiler generates the following internal compiler error message when the sample program below is compiled. The C/C++ 7.0 compiler generates:

   fatal error C1001: INTERNAL COMPILER ERROR
      (compiler file '@(#)reg86.c:1.26', line 4479)

   fatal error C1001: internal compiler error
      (compiler file '@(#)reg86.c:1.26', line 4600)

RESOLUTION

To avoid the error, use the fast compiler instead of the optimizing compiler. Use of the fast compiler can be forced by using the /f compiler switch. Note that you can still use optimizations even though you are using the fast compiler.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed above. This problem was corrected in Visual C++ version 1.5.

Sample Code

/* Compile options needed: /c /f-
*/

    {
    long lField11;
    long lField12;
    long lField13;
    long lField14;
    long lField15;
    } Table1;

    {
    long lField21;
    long lField22;
    long lField23;
    long lField24;
    long lField25;
    char cField26;
    } Table2;

void func1(long);
int func2(int *, Table1 *);
void func(int lParam1, Table2 * ptabParam2);

void func(int lParam1, Table2 * ptabParam2)

    {
        func1(ptabParam2->lField25 - 8L);
    }
    lParam1= func2(&lParam1, &LevelLists[((ptabParam2->cField26)&3)]);