Q65305: C1001: Internal Compiler Error: ‘@(#)regMD.c:1.100’, Line 4634

Article: Q65305
Product(s): See article
Version(s): 6.00   | 6.00
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | buglist6.00 | mspl13_c
Last Modified: 31-AUG-1990

The code below generates the following error if compiled with /Oe and
/Ol in any memory model:

   fatal error C1001: Internal Compiler Error
        (compiler file '@(#)regMD.c:1.100', line 4634)

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

#include <stdio.h>

extern FILE *ftable;
extern int nrules;
extern short *rrhs;

output_rule_data()
{
  int i;
  int j,k;

  for (i=1;i<nrules;i++)
  {
    k = i+1;     // Use k for i+1 in the next line as a workaround

    fprintf(ftable,"%6d",rrhs[i+1] - rrhs[i] - 1);
  }
}

The following are suggested workarounds:

1. Do the incrementing of the index of the array outside the printf
   using a temporary variable, and use that variable as the index
   inside the printf.

2. Compile without the /Oe or /Ol compile option by NOT including the
   option on the compile line or using the optimize or loopopt pragma.

Microsoft has confirmed this to be a problem with C version 6.00. We
are researching this problem and will post new information here as it
becomes available.

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