busybox/libbb/last_char_is.c
Denys Vlasenko 79a4032eef libbb: shrink last_char_is(), no longer allow NULL string argument
function                                             old     new   delta
last_char_is                                          40      28     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-07-19 20:49:22 +02:00

20 lines
452 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 source tree.
*/
#include "libbb.h"
/* Find out if the last character of a string matches the one given */
char* FAST_FUNC last_char_is(const char *s, int c)
{
if (!s[0])
return NULL;
while (s[1])
s++;
return (*s == (char)c) ? (char *) s : NULL;
}