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From: | Gerd Hoffmann |
Subject: | Re: [Qemu-devel] [PATCH] Permit zero-sized qemu_malloc() & friends |
Date: | Tue, 01 Dec 2009 15:47:56 +0100 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20090922 Fedora/3.0-3.9.b4.fc12 Lightning/1.0pre Thunderbird/3.0b4 |
On 12/01/09 15:08, Markus Armbruster wrote:
For what it's worth, it violates the spec for malloc(). For zero-sized allocations, we may either return a null pointer (but we already decided we don't want to), or an object different from any other object alive.
Which clearly rules out the fixed memory location for malloc(0)."malloc(size ? size : 1)" is indeed the easiest way to make sure we conform to the spec and also don't return NULL.
cheers, Gerd
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