glibc/wcsmbs/wmemchr.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

66 lines
1.6 KiB
C

/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <wchar.h>
#ifdef WMEMCHR
# define __wmemchr WMEMCHR
#endif
wchar_t *
__wmemchr (const wchar_t *s, wchar_t c, size_t n)
{
/* For performance reasons unfold the loop four times. */
while (n >= 4)
{
if (s[0] == c)
return (wchar_t *) s;
if (s[1] == c)
return (wchar_t *) &s[1];
if (s[2] == c)
return (wchar_t *) &s[2];
if (s[3] == c)
return (wchar_t *) &s[3];
s += 4;
n -= 4;
}
if (n > 0)
{
if (*s == c)
return (wchar_t *) s;
++s;
--n;
}
if (n > 0)
{
if (*s == c)
return (wchar_t *) s;
++s;
--n;
}
if (n > 0)
if (*s == c)
return (wchar_t *) s;
return NULL;
}
libc_hidden_def (__wmemchr)
weak_alias (__wmemchr, wmemchr)
libc_hidden_weak (wmemchr)