busybox/libbb/last_char_is.c
2006-11-24 22:42:44 +00:00

25 lines
572 B
C

/* vi: set sw=4 ts=4: */
/*
* busybox library eXtended function
*
* Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include "libbb.h"
/* Find out if the last character of a string matches the one given Don't
* underrun the buffer if the string length is 0. Also avoids a possible
* space-hogging inline of strlen() per usage.
*/
char* last_char_is(const char *s, int c)
{
if (s) {
s = strrchr(s, c);
if (s && !s[1])
return (char*)s;
}
return NULL;
}