arm-trusted-firmware/lib/libc/memrchr.c

25 lines
344 B
C

/*
* Copyright (c) 2019, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <string.h>
#undef memrchr
void *memrchr(const void *src, int c, size_t len)
{
const unsigned char *s = src + (len - 1);
while (len--) {
if (*s == (unsigned char)c) {
return (void*) s;
}
s--;
}
return NULL;
}