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Q63660: Error D2030 May Hide Other Errors

Article: Q63660
Product(s): See article
Version(s): 6.00
Operating System(s): OS/2
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 15-AUG-1990

When compiling the example code shown below with C6.00 under OS/2
version 1.20, the compiler issues the following error messages at the
command line:

   x.c(2) : error C2065: 'UNDEFINED_CONST' : undefined
   x.c(2) : error C2057: expected constant expression
   Command line error D2030 : INTERNAL COMPILER ERROR in 'P1'
                   Contact Microsoft Product Support

Programmer's WorkBench (PWB) only issues the following message:

   Command line error D2030 : INTERNAL COMPILER ERROR in 'P1'
                   Contact Microsoft Product Support

This is also the only error message issued if you compile from the
command line and redirect the output.

Turning off or on any optimizations makes no difference. Defining the
the undefined constant causes the error to disappear.

This error is indicating that the first pass of the compiler ("P1") is
getting a GP fault. Since the pass is GP faulting, the error message
output doesn't get flushed from the buffer and the extra error
messages are lost.

In general, if you receive a D2030 error, other error messages may
have been lost. Ways to find the problem include using different
optimizations and memory models, using the "-qc" option, and breaking
your code into smaller pieces until you find the problem code.

Code Example
------------

typedef int FOO ;
void funcA( int array[ UNDEFINED_CONST ] ) ;
void funcB( void ) ;

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