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Q67033: C1001: Internal Compiler Error: @(#)grammer.c:1.138, Line 164

Article: Q67033
Product(s): See article
Version(s): 6.00 6.00a | 6.00 6.00a
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | s_quickc buglist6.00 buglist6.00a | mspl13_c
Last Modified: 28-NOV-1990

If a semicolon (;) is missing at the end of a structure, union, or
enumerator definition, and the statement following the semicolon is a
variable declaration of any of the unsigned types except for
"unsigned", no compiler error is generated. However, in the sample
code below, attempting to use this variable may result in the
following internal compiler error:

   fatal error C1001: Internal Compiler Error
        (compiler file '@(#)grammar.c:1.138', line 164)
        Contact Microsoft Product Support Services

Similarly, QuickC version 2.51 does not generate an error on the
missing semicolon; however, no internal compiler error is generated
and the program will experience unpredictable results on attempts to
use the variable declared after the structure, union, or enumerator
definition.

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

struct foo {
     int i;
}                    /* missing semicolon (;) */

unsigned char c;

void main(void)
{
     c==0;
}

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

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