From fa095a4504cbe668e4244547e2c141597bea4ecf Mon Sep 17 00:00:00 2001 From: Andreas Rottmann Date: Mon, 14 Sep 2009 12:32:44 +0200 Subject: Imported Upstream version 0.9.1 --- lib/unistr/u32-strrchr.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 lib/unistr/u32-strrchr.c (limited to 'lib/unistr/u32-strrchr.c') diff --git a/lib/unistr/u32-strrchr.c b/lib/unistr/u32-strrchr.c new file mode 100644 index 00000000..b4641f33 --- /dev/null +++ b/lib/unistr/u32-strrchr.c @@ -0,0 +1,38 @@ +/* Search character in UTF-32 string. + Copyright (C) 1999, 2002, 2006 Free Software Foundation, Inc. + Written by Bruno Haible , 2002. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include "unistr.h" + +uint32_t * +u32_strrchr (const uint32_t *s, ucs4_t uc) +{ + /* Calling u32_strlen and then searching from the other end would cause more + memory accesses. Avoid that, at the cost of a few more comparisons. */ + uint32_t *result = NULL; + + for (;; s++) + { + if (*s == uc) + result = (uint32_t *) s; + if (*s == 0) + break; + } + return result; +} -- cgit v1.2.3