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Re: removing coreutils' final strncpy uses
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From: |
Eric Blake |
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Subject: |
Re: removing coreutils' final strncpy uses |
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Date: |
Tue, 17 Jul 2012 05:29:38 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 |
On 07/17/2012 03:27 AM, Jim Meyering wrote:
> ohav chochmah wrote:
>> Why not reuse memccpy (in glibc)? as in 'memccpy(to, from, '\0', size)'.
>> Not only for sake of reusing, but memccpy is highly optimized for
>> ia64, and may be optimized for other arches in the future.
>
>
> but (for portability) that would require a gnulib module for memccpy.
> Such a module would be welcome regardless, but here it seems like
> it's not worth the complication, since the few uses of stzncpy are not
> performance sensitive.
An additional point: memccpy is POSIX, stzncpy is not. We should
implement a memccpy module in gnulib anyways, but according to the
current glibc docs, it is already portable to pretty much everywhere but
BeOS (even mingw has it).
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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