exp2l: Work around a NetBSD 10.0/i386 bug.
[gnulib.git] / lib / wcsrchr-impl.h
blob63415593fe79372090b0ac06f18fab58b12db7d4
1 /* Search wide string for a wide character.
2 Copyright (C) 1999, 2011-2024 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 1999.
5 This file is free software: you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation, either version 3 of the
8 License, or (at your option) any later version.
10 This file is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
18 wchar_t *
19 wcsrchr (const wchar_t *wcs, wchar_t wc)
21 /* Calling wcslen and then searching from the other end would cause more
22 memory accesses. Avoid that, at the cost of a few more comparisons. */
23 wchar_t *result = NULL;
25 for (;; wcs++)
27 if (*wcs == wc)
28 result = (wchar_t *) wcs;
29 if (*wcs == (wchar_t)'\0')
30 break;
32 return result;