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sortix--sortix/libc/wchar/wmemmove.cpp
Jonas 'Sortie' Termansen 9039553c15 Add wmemmove(3).
2013-12-17 14:30:42 +01:00

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C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
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/wmemmove.cpp
Copy wide memory between potentially overlapping regions.
*******************************************************************************/
#include <stdint.h>
#include <wchar.h>
extern "C" wchar_t* wmemmove(wchar_t* dst, const wchar_t* src, size_t n)
{
if ( (uintptr_t) dst < (uintptr_t) src )
for ( size_t i = 0; i < n; i++ )
dst[i] = src[i];
else
for ( size_t i = 0; i < n; i++ )
dst[n-i] = src[n-i];
return dst;
}