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Date: Wed, 13 Jul 2011 18:21:31 +0400
From: Solar Designer <solar@...nwall.com>
To: musl@...ts.openwall.com
Subject: Re: cluts review
On Wed, Jul 13, 2011 at 09:42:38AM -0400, Rich Felker wrote:
> *asprintf is not portable because it's a GNU extension, but it's
> trivial to implement it as a wrapper for vsnprintf which is standard.
Right. FWIW, non-ancient *BSD's also have asprintf(), and with slightly
safer semantics than glibc: on error, they not only return -1, but also
reset the pointer to NULL. Dmitry V. Levin of ALT Linux tried to push
this semantics change to glibc, but Ulrich rejected it. So it remains
in a patch in ALT Linux and Owl.
It would be nice for cluts to test non-portable functions like that as
well, when they're available, and to point out semantics differences
like this (not as errors, but as properties of the given platform).
Alexander
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