ID Number: Q67084
6.00 6.00a 6.00ax 7.00 | 6.00 6.00a
MS-DOS | OS/2
docerr
Summary:
By default, Microsoft C checks the NULL segment before the final
termination of a program in order to determine if a null pointer
assignment has occurred. This check can be suppressed by defining your
own function called _nullcheck(), which is the name of the library
routine that is normally linked in to do the checking.
The online Help for C versions 6.0, 6.0a, 6.0ax, C/C++ version 7.0,
and QuickC versions 2.5 and 2.51 describes how to replace this
function, but there is an error in those Help files. The online Help
states that you just need to declare your own routine "named
_nullcheck that does nothing". This is not completely true. You
actually need to make your function return a value of zero; otherwise,
the program exit code will be set to 255.
The following is a valid way to define the _nullcheck() function in
your program:
int _cdecl _nullcheck( void)
{
return (0);
}
Additional reference words: 2.50 6.00 6.00a 6.00ax 7.00