diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:36:22 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:36:22 +0000 |
commit | b88bb292821fd7742604ec4e280acebd9a049f62 (patch) | |
tree | 625e4e19e6619f7481e5a8103f876520950769f6 /src/contrib/macros.h | |
parent | Initial commit. (diff) | |
download | knot-b88bb292821fd7742604ec4e280acebd9a049f62.tar.xz knot-b88bb292821fd7742604ec4e280acebd9a049f62.zip |
Adding upstream version 3.0.5.upstream/3.0.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/contrib/macros.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/contrib/macros.h b/src/contrib/macros.h new file mode 100644 index 0000000..39a5f27 --- /dev/null +++ b/src/contrib/macros.h @@ -0,0 +1,44 @@ +/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + 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/>. + */ + +/*! + * \brief Common macros. + */ + +#pragma once + +/*! \brief Eliminate compiler warning with unused parameters. */ +#define UNUSED(param) (void)(param) + +#ifndef MIN +/*! \brief Type-safe minimum macro. */ +#define MIN(a, b) \ + ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; }) + +/*! \brief Type-safe maximum macro. */ +#define MAX(a, b) \ + ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a > _b ? _a : _b; }) +#endif + +#ifndef likely +/*! \brief Optimize for x to be true value. */ +#define likely(x) __builtin_expect((x), 1) +#endif + +#ifndef unlikely +/*! \brief Optimize for x to be false value. */ +#define unlikely(x) __builtin_expect((x), 0) +#endif |