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Re: [patch] alias.c: Replace "return NULL_RTX" with "return 0".

On Fri, 13 Jun 2003 04:55:41 +1000, Fergus Henderson <fjh@cs.mu.oz.au> wrote:

> On 12-Jun-2003, Zack Weinberg <zack@codesourcery.com> wrote:
>> Fergus Henderson <fjh@cs.mu.oz.au> writes:
>> 
>> > On 12-Jun-2003, Kazu Hirata <kazu@cs.umass.edu> wrote:
>> >> Attached is a patch to replace "return NULL_RTX" with "return 0".
>> >
>> > I think it would be better style to replace NULL_RTX with NULL
>> > rather than with 0.
>> 
>> GCC sources prefer 0 to NULL for a generic null pointer.
>
> GCC was once written in K&R C, but times change :-)

I prefer NULL to 0.  It is both more readable and more reliable in the
presence of varargs.

Jason
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