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/* $OpenBSD: wcsstr.c,v 1.5 2015/10/01 02:32:07 guenther Exp $ */ |
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/* $NetBSD: wcsstr.c,v 1.3 2003/03/05 20:18:17 tshiozak Exp $ */ |
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/*- |
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* Copyright (c)1999 Citrus Project, |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* citrus Id: wcsstr.c,v 1.2 2000/12/21 05:07:25 itojun Exp |
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*/ |
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#include <wchar.h> |
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wchar_t * |
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#ifdef WCSWCS |
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wcswcs(const wchar_t *big, const wchar_t *little) |
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#else |
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wcsstr(const wchar_t *big, const wchar_t *little) |
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#endif |
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{ |
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const wchar_t *p; |
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const wchar_t *q; |
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const wchar_t *r; |
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if (!*little) { |
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return (wchar_t *)big; |
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} |
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if (wcslen(big) < wcslen(little)) |
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return NULL; |
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p = big; |
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q = little; |
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while (*p) { |
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q = little; |
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r = p; |
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while (*q) { |
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if (*r != *q) |
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break; |
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q++; |
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r++; |
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} |
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if (!*q) { |
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return (wchar_t *)p; |
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} |
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p++; |
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} |
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return NULL; |
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} |
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#ifndef WCSWCS |
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DEF_STRONG(wcsstr); |
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#endif |