void * not handled in AIX C compiler ?
Johann Schweigl
johnny at edvvie.at
Fri Oct 6 14:28:43 AEST 1989
>From article <2398 at ibmpa.UUCP>, by webb at bass.tcspa.ibm.com (Bill Webb):
>
> If the AIX compiler claims to be ANSI (I'm not sure if it does), then
> I'd suggest that you do report it as a bug and see if you can get it fixed.
I've got a number of good explanations to this question.
I sum up by citing Karl Heuer:
---
I believe that AIX C is not intended to be an ANSI C compiler.
(Which is currently right -- johnny)
AIX C supports "void" because it's been part of the language for a decade.
It does not support declaring variables as "void *" because this is
a recent invention, and the compiler has not yet been upgraded to support
ANSI C.
Despite appearances, it does not support "void *" in a typecast,
either. The compiler accepts the construct, but it doesn't behave the
way X3J11 says.
The reason that "void *" isn't even accepted in a declaration is because
of an implementation detail of the compiler. Since "void *" was a
meaningless type in pre-ANSI C, the compiler used that particular
bit-pattern internally to mean "no type", i.e. for undeclared variables.
---
Thanks to you all, johnny
--
This does not reflect the | Johann Schweigl | DOS machines?
opinions of my employer. | johnny at edvvie.at | I don't hate DOS machines.
I am busy enough by talking | | I just feel better when I
about my own ... | EDVG Vienna | don't see one ...
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