libcruft-util/annotations.hpp

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/*
* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* 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.
*
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* ligim is distributed in the hope that it will be useful, but WITHOUT ANY
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* 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 libgim. If not, see <http://www.gnu.org/licenses/>.
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*
* Copyright 2010 Danny Robson <danny@blubinc.net>
*/
#ifndef __ANNOTATIONS_HPP
#define __ANNOTATIONS_HPP
// Don't use the name 'noreturn' as it interferes with other headers which
// may use __attribute__((noreturn)) explicitly.
#define terminal __attribute__ ((noreturn))
#if GCC_VERSION >= 40601
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#define nonnull __attribute__ ((nonnull))
#endif
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#define mustuse __attribute__ ((warn_unused_result))
#if GCC_VERSION >= 40601
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#define unused __attribute__ ((unused))
#endif
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#define pure __attribute__ ((pure))
#define likely(X) (__builtin_expect((X), 1))
#define unlikely(X) (__builtin_expect((X), 0))
#endif // __ANNOTATIONS_HPP