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Merge pull request #121 from objectx/VC2013

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Avoid error C2156 under VC++2013
This commit is contained in:
Victor Zverovich 2015-02-25 06:15:09 -08:00
commit f8fd34ac30
1 changed files with 5 additions and 1 deletions
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6
format.h
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@ -56,10 +56,14 @@ inline uint32_t clz(uint32_t x) {
return 31 - r; return 31 - r;
} }
# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n) # define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
# ifdef _WIN64
# pragma intrinsic(_BitScanReverse64)
# endif
inline uint32_t clzll(uint64_t x) { inline uint32_t clzll(uint64_t x) {
unsigned long r = 0; unsigned long r = 0;
# ifdef _WIN64 # ifdef _WIN64
# pragma intrinsic(_BitScanReverse64)
_BitScanReverse64(&r, x); _BitScanReverse64(&r, x);
# else # else
// Scan the high 32 bits. // Scan the high 32 bits.