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Diffstat (limited to 'src/likely.hpp')
| -rw-r--r-- | src/likely.hpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/likely.hpp b/src/likely.hpp new file mode 100644 index 0000000..b7a8171 --- /dev/null +++ b/src/likely.hpp @@ -0,0 +1,32 @@ +/* + Copyright (c) 2007-2010 iMatix Corporation + + This file is part of 0MQ. + + 0MQ is free software; you can redistribute it and/or modify it under + the terms of the Lesser GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + 0MQ 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 + Lesser GNU General Public License for more details. + + You should have received a copy of the Lesser GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef __ZMQ_LIKELY_HPP_INCLUDED__ +#define __ZMQ_LIKELY_HPP_INCLUDED__ + +#if defined __GNUC__ +#define likely(x) __builtin_expect ((x), 1) +#define unlikely(x) __builtin_expect ((x), 0) +#else +#define likely(x) (x) +#define unlikely(x) (x) +#endif + + +#endif |