cosmopolitan/libc/intrin/strrchr.c

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
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│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
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│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/str/str.h"
#ifndef __aarch64__

/**
 * Searches for last instance of character in string.
 *
 * @param s is NUL-terminated string to search
 * @param c is treated as unsigned char
 * @return address of last c in s, or NULL if not found
 * @asyncsignalsafe
 */
char *strrchr(const char *s, int c) {
  return memrchr(s, c, strlen(s));
}

__weak_reference(strrchr, rindex);

#endif /* __aarch64__ */