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Too much Python 🐍

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Victor Zverovich 2014-02-14 14:06:39 -08:00
parent 6f0387fc22
commit 430c45d618
1 changed files with 1 additions and 1 deletions
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format.h
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@ -249,7 +249,7 @@ extern const uint64_t POWERS_OF_10[];
// Returns the number of decimal digits in n. Leading zeros are not counted // Returns the number of decimal digits in n. Leading zeros are not counted
// except for n == 0 in which case CountDigits returns 1. // except for n == 0 in which case CountDigits returns 1.
inline unsigned CountDigits(uint64_t n) { inline unsigned CountDigits(uint64_t n) {
#if FMT_GCC_VERSION >= 400 or __has_builtin(__builtin_clzll) #if FMT_GCC_VERSION >= 400 || __has_builtin(__builtin_clzll)
// Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
// and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits. // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
uint64_t t = (64 - __builtin_clzll(n | 1)) * 1233 >> 12; uint64_t t = (64 - __builtin_clzll(n | 1)) * 1233 >> 12;