third_party/ulib/musl/src/string/memrchr.c

#include "libc.h"
#include <string.h>

void* __memrchr(const void* m, int c, size_t n) {
    const unsigned char* s = m;
    c = (unsigned char)c;
    while (n--)
        if (s[n] == c)
            return (void*)(s + n);
    return 0;
}

weak_alias(__memrchr, memrchr);