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fix calculation of log2i(1)

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This commit is contained in:
Steffen Vogel 2016-11-07 22:15:00 -05:00
parent dd7e0443ce
commit 88e36f272b
1 changed files with 2 additions and 1 deletions
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3
include/villas/utils.h
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@ -221,7 +221,8 @@ __attribute__((always_inline)) static inline uint64_t rdtsc()
/** Get log2 of long long integers */
static inline int log2i(long long x) {
assert(x > 0);
if (x == 0)
return 1;
return sizeof(x) * 8 - __builtin_clzll(x) - 1;
}