glibc/wcsmbs/wcsncase.c
Paul Eggert 581c785bf3 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 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

70 lines
1.9 KiB
C

/* Compare at most N wide characters of two strings without taking care
for the case.
Copyright (C) 1992-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <wchar.h>
#include <wctype.h>
#ifndef weak_alias
# define __wcsncasecmp wcsncasecmp
# define TOLOWER(Ch) towlower (Ch)
#else
# ifdef USE_IN_EXTENDED_LOCALE_MODEL
# define __wcsncasecmp __wcsncasecmp_l
# define TOLOWER(Ch) __towlower_l ((Ch), loc)
# else
# define TOLOWER(Ch) towlower (Ch)
# endif
#endif
#ifdef USE_IN_EXTENDED_LOCALE_MODEL
# define LOCALE_PARAM , locale_t loc
#else
# define LOCALE_PARAM
#endif
/* Compare no more than N wide characters of S1 and S2,
ignoring case, returning less than, equal to or
greater than zero if S1 is lexicographically less
than, equal to or greater than S2. */
int
__wcsncasecmp (const wchar_t *s1, const wchar_t *s2, size_t n LOCALE_PARAM)
{
wint_t c1, c2;
if (s1 == s2 || n == 0)
return 0;
do
{
c1 = (wint_t) TOLOWER (*s1++);
c2 = (wint_t) TOLOWER (*s2++);
if (c1 == L'\0' || c1 != c2)
return c1 - c2;
} while (--n > 0);
return c1 - c2;
}
#ifndef __wcsncasecmp
weak_alias (__wcsncasecmp, wcsncasecmp)
#endif