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04277e02 | 1 | /* Copyright (C) 1995-2019 Free Software Foundation, Inc. |
33a934a3 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
33a934a3 UD |
9 | |
10 | The GNU C Library 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 GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
33a934a3 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
a482b5a5 | 18 | |
299a95b9 | 19 | #include <wchar.h> |
a482b5a5 | 20 | |
1b48c537 | 21 | #ifndef WCSCMP |
2f44ee08 | 22 | # define WCSCMP __wcscmp |
1b48c537 | 23 | #endif |
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24 | |
25 | /* Compare S1 and S2, returning less than, equal to or | |
299a95b9 | 26 | greater than zero if S1 is lexicographically less than, |
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27 | equal to or greater than S2. */ |
28 | int | |
9d46370c | 29 | WCSCMP (const wchar_t *s1, const wchar_t *s2) |
a482b5a5 | 30 | { |
1f1e1947 | 31 | wchar_t c1, c2; |
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32 | |
33 | do | |
34 | { | |
1f1e1947 AS |
35 | c1 = *s1++; |
36 | c2 = *s2++; | |
95584d3b | 37 | if (c2 == L'\0') |
a482b5a5 RM |
38 | return c1 - c2; |
39 | } | |
40 | while (c1 == c2); | |
41 | ||
95584d3b | 42 | return c1 < c2 ? -1 : 1; |
a482b5a5 | 43 | } |
1b48c537 | 44 | libc_hidden_def (WCSCMP) |
2f44ee08 | 45 | weak_alias (WCSCMP, wcscmp) |