Created
June 12, 2012 14:17
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next greater power of 2
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| static inline size_t next_greater_pow2(size_t size) | |
| { | |
| enum { SIZE_BIT = CHAR_BIT * sizeof (size_t) }; | |
| for(unsigned exp = 0; (1 << exp) < SIZE_BIT; ++exp) | |
| size |= size >> (1 << exp); | |
| return ++size; | |
| } |
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