libbb/last_char_is.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * busybox library eXtended function
   4  *
   5  * Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
   6  *
   7  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   8  */
   9 #include "libbb.h"
  10
  11 /* Find out if the last character of a string matches the one given */
  12 char* FAST_FUNC last_char_is(const char *s, int c)
  13 {
  14         if (!s[0])
  15                 return NULL;
  16         while (s[1])
  17                 s++;
  18         return (*s == (char)c) ? (char *) s : NULL;
  19 }