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[RFC] Implement memcchr
- From: Yuri Gribov <tetra2005 at gmail dot com>
- To: GNU C Library <libc-alpha at sourceware dot org>
- Cc: adhemerval dot zanella at linaro dot org
- Date: Fri, 13 Jan 2017 07:54:06 +0000
- Subject: [RFC] Implement memcchr
- Authentication-results: sourceware.org; auth=none
Hi all.
Recent FreeBSD have a nice complement for standard memchr function -
memcchr (https://www.freebsd.org/cgi/man.cgi?query=memcchr). It e.g.
allows user to efficiently check whether buffer is zeroed out. Would
it make sense to add something like this to Glibc as well (yes, I can
volunteer)?
Here's a motivational GCC bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908
Adhemerval expressed his concerns that the function may not be that
widespread and useful.
-Y