| 1 | /* Copyright (C) 1995-2024 Free Software Foundation, Inc. |
|---|---|
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <https://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <wchar.h> |
| 19 | |
| 20 | #ifndef WCSCMP |
| 21 | # define WCSCMP __wcscmp |
| 22 | #endif |
| 23 | |
| 24 | /* Compare S1 and S2, returning less than, equal to or |
| 25 | greater than zero if S1 is lexicographically less than, |
| 26 | equal to or greater than S2. */ |
| 27 | int |
| 28 | WCSCMP (const wchar_t *s1, const wchar_t *s2) |
| 29 | { |
| 30 | wchar_t c1, c2; |
| 31 | |
| 32 | do |
| 33 | { |
| 34 | c1 = *s1++; |
| 35 | c2 = *s2++; |
| 36 | if (c2 == L'\0') |
| 37 | return c1 - c2; |
| 38 | } |
| 39 | while (c1 == c2); |
| 40 | |
| 41 | return c1 < c2 ? -1 : 1; |
| 42 | } |
| 43 | libc_hidden_def (WCSCMP) |
| 44 | weak_alias (WCSCMP, wcscmp) |
| 45 |