view lib/unitypes.in.h @ 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
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/* Elementary types and macros for the GNU UniString library.
   Copyright (C) 2002, 2005-2006, 2009-2019 Free Software Foundation, Inc.

   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 <https://www.gnu.org/licenses/>.  */

#ifndef _UNITYPES_H
#define _UNITYPES_H

/* Get uint8_t, uint16_t, uint32_t.  */
#include <stdint.h>

/* Type representing a Unicode character.  */
typedef uint32_t ucs4_t;

/* Attribute of a function whose result depends only on the arguments
   (not pointers!) and which has no side effects.  */
#ifndef _UC_ATTRIBUTE_CONST
# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#  define _UC_ATTRIBUTE_CONST __attribute__ ((__const__))
# else
#  define _UC_ATTRIBUTE_CONST
# endif
#endif

/* Attribute of a function whose result depends only on the arguments
   (possibly pointers) and global memory, and which has no side effects.  */
#ifndef _UC_ATTRIBUTE_PURE
# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
#  define _UC_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
#  define _UC_ATTRIBUTE_PURE
# endif
#endif

#endif /* _UNITYPES_H */