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Consensus: Fix bug when compiler do not support __builtin_clz*

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#ifdef is not correct since defination is defined to 0 or 1. Should change to #if

Github-Pull: #12573
Rebased-From: 18307849b405f9e2067eaa8091b105838f413707
This commit is contained in:
532479301 2018-03-01 17:20:27 +08:00 committed by MarcoFalke
parent b72c0bd4c9
commit 88d1a649a2
1 changed files with 2 additions and 2 deletions
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4
src/crypto/common.h
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@ -82,12 +82,12 @@ void static inline WriteBE64(unsigned char* ptr, uint64_t x)
/** Return the smallest number n such that (x >> n) == 0 (or 64 if the highest bit in x is set. */ /** Return the smallest number n such that (x >> n) == 0 (or 64 if the highest bit in x is set. */
uint64_t static inline CountBits(uint64_t x) uint64_t static inline CountBits(uint64_t x)
{ {
#ifdef HAVE_DECL___BUILTIN_CLZL #if HAVE_DECL___BUILTIN_CLZL
if (sizeof(unsigned long) >= sizeof(uint64_t)) { if (sizeof(unsigned long) >= sizeof(uint64_t)) {
return x ? 8 * sizeof(unsigned long) - __builtin_clzl(x) : 0; return x ? 8 * sizeof(unsigned long) - __builtin_clzl(x) : 0;
} }
#endif #endif
#ifdef HAVE_DECL___BUILTIN_CLZLL #if HAVE_DECL___BUILTIN_CLZLL
if (sizeof(unsigned long long) >= sizeof(uint64_t)) { if (sizeof(unsigned long long) >= sizeof(uint64_t)) {
return x ? 8 * sizeof(unsigned long long) - __builtin_clzll(x) : 0; return x ? 8 * sizeof(unsigned long long) - __builtin_clzll(x) : 0;
} }