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reorganized function definitions

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This commit is contained in:
joaquintides
2022-10-15 11:17:51 +02:00
parent 63eaed843f
commit 3a0b752363
1 changed files with 22 additions and 21 deletions
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43
include/boost/unordered/detail/foa.hpp
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@ -580,27 +580,6 @@ private:
#endif
inline unsigned int unchecked_countr_zero(int x)
{
#if defined(BOOST_MSVC)
unsigned long r;
_BitScanForward(&r,(unsigned long)x);
return (unsigned int)r;
#else
BOOST_UNORDERED_ASSUME(x);
return (unsigned int)boost::core::countr_zero((unsigned int)x);
#endif
}
inline void prefetch(const void* p)
{
#if defined(BOOST_GCC)||defined(BOOST_CLANG)
__builtin_prefetch((const char*)p);
#elif defined(BOOST_UNORDERED_SSE2)
_mm_prefetch((const char*)p,_MM_HINT_T0);
#endif
}
/* foa::table uses a size policy to obtain the permissible sizes of the group
* array (and, by implication, the element array) and to do the hash->group
* mapping.
@ -701,6 +680,18 @@ struct xmx_mix
}
};
inline unsigned int unchecked_countr_zero(int x)
{
#if defined(BOOST_MSVC)
unsigned long r;
_BitScanForward(&r,(unsigned long)x);
return (unsigned int)r;
#else
BOOST_UNORDERED_ASSUME(x);
return (unsigned int)boost::core::countr_zero((unsigned int)x);
#endif
}
template<typename,typename,typename,typename>
class table;
@ -935,6 +926,16 @@ void swap_if(T& x,T& y){using std::swap; swap(x,y);}
template<bool B,typename T,typename std::enable_if<!B>::type* =nullptr>
void swap_if(T&,T&){}
inline void prefetch(const void* p)
{
#if defined(BOOST_GCC)||defined(BOOST_CLANG)
__builtin_prefetch((const char*)p);
#elif defined(BOOST_UNORDERED_SSE2)
_mm_prefetch((const char*)p,_MM_HINT_T0);
#endif
}
// we pull this out so the tests don't have to rely on a magic constant or
// instantiate the table class template as it can be quite gory
//