Re: Legal alloca?

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#2624

From: Konrad Schwarz
Date: Fri, 19 Apr 1996 14:30

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In article <4l33l8$7of@solutions.solon.com>, mfg@ee.edinburgh.ac.uk (Michael F Gordon) writes:

|> So, just how non-portable and horrible is [alloca]?

Mips has it, OSF/1 has it, AIX has it, HP-UX has it, PC's C have it (I'm pretty
sure), Venix (a PDP-11 Unix) doesn't have it, SUNs have it,
VAX has it (naturally).  Gcc might support it on some machines where the
native compiler doesn't.

If a compiler-writer forbids alloca, he can make the calling sequence quicker,
and not dedicate a register as a frame pointer.

Konrad Schwarz

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Path: arc1-ca.pugleaf.net!solon.com!not-for-mail
From: schwarz@hermi.complang.tuwien.ac.at (Konrad Schwarz)
Newsgroups: comp.lang.c.moderated
Subject: Re: Legal alloca?
Date: 19 Apr 1996 09:30:02 -0500
Organization: Technische Universität Wien, Vienna, Austria
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