[tremor] Re: [PATCH] eliminate alloca() usage
Michael Smith
msmith at labyrinth.net.au
Thu Oct 17 03:36:29 PDT 2002
At 11:40 AM 10/17/02 +0200, you wrote:
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>On 2002-10-17 at 05:38:51 Nicolas Pitre wrote:
>
>NP> Anybody with another compiler than GCC please confirm if the attached
>NP> patch works for you or not.
>
>This will only work with GCC, since it is a GCC specific extension. It
>is definitely not ANSI or ISO C. (Note that I agree that it is a very
>handy feature, which almost entirely removes the need for an alloca()
>function.)
Whilst it was at one time a GCC (and other compilers, though far from all
of them) extension, it's been part of ANSI C for a few years now. C99
introduces variable-size automatic arrays, so any compiler that supports
C99 will work with this. alloca() is more portable in practice, though,
this was only suggested as an alternative for people without alloca().
Michael
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