|  | /* Copyright (C) 1995-2016 Free Software Foundation, Inc. | 
|  | This file is part of the GNU C Library. | 
|  | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. | 
|  |  | 
|  | The GNU C Library is free software; you can redistribute it and/or | 
|  | modify it under the terms of the GNU Lesser General Public | 
|  | License as published by the Free Software Foundation; either | 
|  | version 2.1 of the License, or (at your option) any later version. | 
|  |  | 
|  | The GNU C Library is distributed in the hope that it will be useful, | 
|  | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
|  | Lesser General Public License for more details. | 
|  |  | 
|  | You should have received a copy of the GNU Lesser General Public | 
|  | License along with the GNU C Library; if not, see | 
|  | <http://www.gnu.org/licenses/>.  */ | 
|  |  | 
|  | #include <wchar.h> | 
|  |  | 
|  | #ifndef WCSCMP | 
|  | # define WCSCMP __wcscmp | 
|  | #endif | 
|  |  | 
|  | /* Compare S1 and S2, returning less than, equal to or | 
|  | greater than zero if S1 is lexicographically less than, | 
|  | equal to or greater than S2.	 */ | 
|  | int | 
|  | WCSCMP (const wchar_t *s1, const wchar_t *s2) | 
|  | { | 
|  | wchar_t c1, c2; | 
|  |  | 
|  | do | 
|  | { | 
|  | c1 = *s1++; | 
|  | c2 = *s2++; | 
|  | if (c2 == L'\0') | 
|  | return c1 - c2; | 
|  | } | 
|  | while (c1 == c2); | 
|  |  | 
|  | return c1 < c2 ? -1 : 1; | 
|  | } | 
|  | libc_hidden_def (WCSCMP) | 
|  | weak_alias (WCSCMP, wcscmp) |