historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/skiboot/libc/string/memcmp.c

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2024-01-16 11:20:27 -06:00
/******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#include <stddef.h>
int memcmp(const void *ptr1, const void *ptr2, size_t n);
int memcmp(const void *ptr1, const void *ptr2, size_t n)
{
const unsigned char *p1 = ptr1;
const unsigned char *p2 = ptr2;
while (n-- > 0) {
if (*p1 != *p2)
return (*p1 - *p2);
p1 += 1;
p2 += 1;
}
return 0;
}