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Q62309: Internal Compiler Error ‘@(#)regMD.c:1.100’, Line 3074

Article: Q62309
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: 22-JUN-1990

The code below, when compiled with Microsoft C 6.00, produces the
following error message:

   test.c(8) : fatal error C1001: Internal Compiler Error
               (compiler file '@(#)regMD.c:1.100', line 3074)
               Contact Microsoft Product Support Services

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

void test ( long Addr1, long Addr2 )
{
    /* This expression compiles. */
    if( ((Addr1 & 0x0FFF0000) - (Addr2 & 0x0FFFF0000)) >= 0 );

    /* Removing parens around Addr1 & 0x0FFF0000 causes ICE */
    if( (Addr1 & 0x0FFF0000 - (Addr2 & 0x0FFFF0000)) >= 0 );
}

The error may be worked around, as seen in the sample code, by placing
parentheses around the subexpression involving Addr.

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

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