Mercurial > gnulib
view lib/strcspn.c @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Copyright (C) 1991, 1994, 1996-1997, 2002-2003, 2005-2006, 2009-2019 Free * Software Foundation, Inc. NOTE: The canonical source of this file is maintained with the GNU C Library. Bugs can be reported to bug-glibc@gnu.org. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> #include <stddef.h> #include <string.h> #if _LIBC # undef strcspn #endif /* Return the length of the maximum initial segment of S which contains no characters from REJECT. */ size_t strcspn (const char *s, const char *reject) { size_t count = 0; while (*s != '\0') if (strchr (reject, *s++) == NULL) ++count; else return count; return count; }