For random stuff not in src/util.h util_bitmask is too heavyweight for what I was looking for. v2: Make macros return 0 or 1 (@davidriley) v3: static inline macros (@gerddie) Reviewed-by: Gert Wollny <gert.wollny@collabora.com>macos/master
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/**************************************************************************
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* |
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* Copyright (C) 2019 Chromium. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* |
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**************************************************************************/ |
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#include <stdint.h> |
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#include <stdbool.h> |
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#define BIT(n) (UINT32_C(1) << (n)) |
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static inline bool has_bit(uint32_t mask, uint32_t bit) |
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{ |
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return !!(mask & bit); |
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} |
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static inline bool has_bits(uint32_t mask, uint32_t bits) |
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{ |
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return !!((mask & bits) == bits); |
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} |
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static inline bool is_only_bit(uint32_t mask, uint32_t bit) |
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{ |
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return (mask == bit); |
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} |
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