sortix-mirror/libc/string/memmove.cpp

40 lines
1.4 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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/>.
string/memmove.cpp
Copy memory between potentionally overlapping regions.
*******************************************************************************/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
// TODO: This is a hacky implementation!
extern "C" void* memmove(void* _dest, const void* _src, size_t n)
{
uint8_t* dest = (uint8_t*) _dest;
const uint8_t* src = (const uint8_t*) _src;
uint8_t* tmp = (uint8_t*) malloc(n);
memcpy(tmp, src, n);
memcpy(dest, tmp, n);
free(tmp);
return _dest;
}