null args to macros in ANSI C

[Mark Davies]

In article <11247 at smoke.BRL.MIL> gwyn at brl.arpa (Doug Gwyn) writes:
>In article <1989Oct9.195333.2544 at comp.vuw.ac.nz> I wrote:
>>Is objecting to the following bit of code an ANSI'ism?
>>#define mem_alloc(s) malloc(s)
>>extern char *mem_alloc();

>No, it's simply incorrect use of C, and pre-ANSI implementations should
>also complain about it.

>Note also that malloc() should NOT be declared by the application under
>a standard-conforming implementation; instead #include <stdlib.h>.  The
>function returns void* in conforming implementations.

>I don't know why you want to rename malloc, but
>	#define mem_alloc malloc
>will do it correctly.

I don't normally. Sun did.  The actual bit of code this occured in was part
of sunrpc.

rpctypes.h includes the following bit of code

	:
#ifndef KERNEL
extern  char    *malloc();
#define mem_alloc(bsize)        malloc(bsize)
#define mem_free(ptr, bsize)    free(ptr)
	:

then xdr_reference.c does the following

	:
#include "rpctypes.h"   /* <> */
	:
	:
char *mem_alloc();
	:

Just another example of Sun writing bogus code it seems.

mark
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