mirror of
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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2022 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_LG_COMMON_UTIL_
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#define _H_LG_COMMON_UTIL_
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#ifndef min
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#define min(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); \
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_a < _b ? _a : _b; })
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#endif
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#ifndef max
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#define max(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); \
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_a > _b ? _a : _b; })
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#endif
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#ifndef clamp
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#define clamp(v,a,b) min(max(v, a), b)
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#endif
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#define UPCAST(type, x) \
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(type *)((uintptr_t)(x) - offsetof(type, base))
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#endif
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