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add stasis_round_up_to_power_of_two

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Sears Russell 2010-10-03 15:41:19 +00:00
parent b3e5743691
commit ecbdc9513f
1 changed files with 8 additions and 0 deletions
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8
stasis/util/log2.h
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@ -52,4 +52,12 @@ static inline uint8_t stasis_log_2_64(uint64_t v) {
return r;
}
static inline uint64_t stasis_round_up_to_power_of_two(uint64_t v) {
if(v) {
return 1 << (stasis_log_2_64(v)-1);
} else {
return 0;
}
}
#endif /* LOG2_H_ */