Q68073: C1001: Internal Compiler Error: mactab.c:1.70, Line 482

Article: Q68073
Product(s): See article
Version(s): 6.00 6.00a | 6.00 6.00a
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | buglist6.00 buglist6.00a | mspl13_c
Last Modified: 6-FEB-1991

The sample code below produces the following internal compiler error
when compiled with both the /Ol and /Oe optimizations. This error
occurs when compiled under the compact and large memory models of C
6.00a and under all memory models except the huge model of C 6.00.

   test.c(9) : fatal error C1001: Internal Compiler Error
                  (compiler file '@(#)mactab.c:1.70', line 482)
                   Contact Microsoft Product Support Services

Disabling either of the offending optimizations will correct this
error.

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

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

void goo(int);

void foo(void)
{
   int high, low=0, mid, len, * word;

   while (mid)
   {
      mid=low+high;
      len=word[mid+1]-word[mid];
      if(len) while(mid) goo(len);
      else low=5 ;
   }
}

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