ID Number: Q66782
6.00 6.00a 6.00ax | 6.00 6.00a
MS-DOS | OS/2
buglist6.00 buglist6.00a buglist6.00ax fixlist7.00
Summary:
SYMPTOMS
The Microsoft C versions 6.0, 6.0a, and C 6.0ax compiler options
/Za and /Gr are not compatible. /Gr enables the register calling
convention for passing function parameters in registers, and /Za
disables Microsoft-specific extensions to the C language. In C 6.0,
6.0a, and 6.0ax, the register calling convention relies on
Microsoft extensions being enabled (/Ze).
If you try to specify both /Gr and /Za, the compiler will halt with
the following error:
Command line error D2020 : -Gr option requires extended
keywords to be enabled (-Ze)
STATUS
Removal of this limitation is being considered for a future release
of the C compiler.
Microsoft has confirmed this to be a problem in C versions 6.0,
6.0a, and 6.0ax. This problem was corrected in C/C++ version 7.0.
Additional reference words: 6.00 6.00a 6.00ax _fastcall