From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/generic/strrchr.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 sysdeps/generic/strrchr.c (limited to 'sysdeps/generic/strrchr.c') diff --git a/sysdeps/generic/strrchr.c b/sysdeps/generic/strrchr.c new file mode 100644 index 0000000000..29402f086c --- /dev/null +++ b/sysdeps/generic/strrchr.c @@ -0,0 +1,49 @@ +/* Copyright (C) 1991, 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include +#include + + +/* Find the last ocurrence of C in S. */ +char * +DEFUN(strrchr, (s, c), CONST char *s AND int c) +{ + register CONST char *found, *p; + + c = (unsigned char) c; + + /* Since strchr is fast, we use it rather than the obvious loop. */ + + if (c == '\0') + return strchr(s, '\0'); + + found = NULL; + while ((p = strchr(s, c)) != NULL) + { + found = p; + s = p + 1; + } + + return (char *) found; +} + +#ifdef weak_alias +#undef rindex +weak_alias (strrchr, rindex) +#endif -- cgit v1.2.3