/*******************************************************************************

    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.

    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/memcmp.cpp
    Compares two memory regions.

*******************************************************************************/

#include <string.h>

extern "C" int memcmp(const void* a_ptr, const void* b_ptr, size_t size)
{
	const unsigned char* a = (const unsigned char*) a_ptr;
	const unsigned char* b = (const unsigned char*) b_ptr;
	for ( size_t i = 0; i < size; i++ )
	{
		if ( a[i] < b[i] )
			return -1;
		if ( a[i] > b[i] )
			return +1;
	}
	return 0;
}