Mercurial > gnulib
annotate lib/wcsrchr-impl.h @ 40186:8964917f9574
autoupdate
| author | Karl Berry <karl@freefriends.org> |
|---|---|
| date | Mon, 18 Feb 2019 08:02:49 -0800 |
| parents | b06060465f09 |
| children |
| rev | line source |
|---|---|
| 14297 | 1 /* Search wide string for a wide character. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
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2 Copyright (C) 1999, 2011-2019 Free Software Foundation, Inc. |
| 14297 | 3 Written by Bruno Haible <bruno@clisp.org>, 1999. |
| 4 | |
| 5 This program is free software: you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 3 of the License, or | |
| 8 (at your option) any later version. | |
| 9 | |
| 10 This program 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 General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 19190 | 16 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 14297 | 17 |
| 18 wchar_t * | |
| 19 wcsrchr (const wchar_t *wcs, wchar_t wc) | |
| 20 { | |
| 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; | |
| 24 | |
| 25 for (;; wcs++) | |
| 26 { | |
| 27 if (*wcs == wc) | |
| 28 result = (wchar_t *) wcs; | |
| 29 if (*wcs == (wchar_t)'\0') | |
| 30 break; | |
| 31 } | |
| 32 return result; | |
| 33 } |