22 lines
543 B
C
22 lines
543 B
C
#ifndef COMMON_MATH_H
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#define COMMON_MATH_H
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#include <stdint.h>
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// https://stackoverflow.com/questions/466204/rounding-up-to-next-power-of-2
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// https://stackoverflow.com/questions/1322510/given-an-integer-how-do-i-find-the-next-largest-power-of-two-using-bit-twiddlin/1322548#1322548
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static inline uint64_t common_nearest_bigger_power_of_2_u64(uint64_t value)
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{
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value--;
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value |= value >> 1;
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value |= value >> 2;
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value |= value >> 4;
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value |= value >> 8;
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value |= value >> 16;
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value |= value >> 32;
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value++;
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return value;
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}
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#endif
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