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/* function-attributes.h - Provides compiler abstractions for
* function attributes
*
* Copyright (c) 2012 Justus Winter <4winter@informatik.uni-hamburg.de>
*
* 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
* (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 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 http://www.gnu.org/licenses/ .
*/
#ifndef FUNCTION_ATTRIBUTES_H
#define FUNCTION_ATTRIBUTES_H
/* clang provides this macro to test for support for function
* attributes. If it isn't defined, this provides a compatibility
* macro for other compilers.
*/
#ifndef __has_attribute
#define __has_attribute(x) 0
#endif
/* Provide a NORETURN_ATTRIBUTE macro similar to PRINTF_ATTRIBUTE from
* talloc.
*
* This attribute is understood by gcc since version 2.5. clang
* provides support for testing for function attributes.
*/
#ifndef NORETURN_ATTRIBUTE
#if (__GNUC__ >= 3 || \
(__GNUC__ == 2 && __GNUC_MINOR__ >= 5) || \
__has_attribute (noreturn))
#define NORETURN_ATTRIBUTE __attribute__ ((noreturn))
#else
#define NORETURN_ATTRIBUTE
#endif
#endif
#endif
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