Mercurial > gnulib
annotate lib/wcsncasecmp-impl.h @ 40057:b06060465f09
maint: Run 'make update-copyright'
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Tue, 01 Jan 2019 00:25:11 +0100 |
| parents | 10eb9086bea0 |
| children |
| rev | line source |
|---|---|
| 14292 | 1 /* Compare two wide strings ignoring case. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
|
2 Copyright (C) 1999, 2011-2019 Free Software Foundation, Inc. |
| 14292 | 3 Written by Bruno Haible <bruno@clisp.org>, 2011. |
| 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/>. */ |
| 14292 | 17 |
| 18 int | |
| 19 wcsncasecmp (const wchar_t *s1, const wchar_t *s2, size_t n) | |
| 20 { | |
| 21 for (; n > 0;) | |
| 22 { | |
| 23 wchar_t wc1 = towlower (*s1++); | |
| 24 wchar_t wc2 = towlower (*s2++); | |
| 25 if (wc1 != (wchar_t)'\0' && wc1 == wc2) | |
| 26 { | |
| 27 n--; | |
| 28 continue; | |
| 29 } | |
| 30 /* Note that wc1 and wc2 each have at most 31 bits. */ | |
| 31 return (int)wc1 - (int)wc2; | |
| 32 /* > 0 if wc1 > wc2, < 0 if wc1 < wc2, | |
| 33 = 0 if wc1 and wc2 are both '\0'. */ | |
| 34 } | |
| 35 return 0; | |
| 36 } |