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sortix--sortix/libc/wchar/wcsrchr.cpp

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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
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This file is part of the Sortix C Library.
The Sortix 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 3 of the License, or (at your
option) any later version.
The Sortix 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 Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
wchar/wcsrchr.cpp
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Searches a string for a specific character.
*******************************************************************************/
#include <wchar.h>
extern "C" wchar_t* wcsrchr(const wchar_t* str, wchar_t uc)
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{
const wint_t* ustr = (const wint_t*) str;
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const wchar_t* last = NULL;
for ( size_t i = 0; true; i++ )
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{
if ( ustr[i] == (wint_t) uc )
last = str + i;
if ( !ustr[i] )
break;
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}
return (wchar_t*) last;
}