notmuch/compat/function-attributes.h
Daniel Kahn Gillmor 6a833a6e83 Use https instead of http where possible
Many of the external links found in the notmuch source can be resolved
using https instead of http.  This changeset addresses as many as i
could find, without touching the e-mail corpus or expected outputs
found in tests.
2016-06-05 08:32:17 -03:00

47 lines
1.5 KiB
C

/* 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 https://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