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made dependency on size_policy minimum size explicit

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joaquintides
2022-09-28 09:54:44 +02:00
parent 7a1a25991f
commit 2889aab226
1 changed files with 4 additions and 2 deletions
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6
include/boost/unordered/detail/foa.hpp
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@ -252,6 +252,8 @@ struct pow2_size_policy
return std::size_t(1)<<(sizeof(std::size_t)*CHAR_BIT-size_index); return std::size_t(1)<<(sizeof(std::size_t)*CHAR_BIT-size_index);
} }
static constexpr std::size_t min_size(){return 2;}
static inline std::size_t position(std::size_t hash,std::size_t size_index) static inline std::size_t position(std::size_t hash,std::size_t size_index)
{ {
return hash>>size_index; return hash>>size_index;
@ -699,8 +701,8 @@ private:
using dummy_group_layout= using dummy_group_layout=
typename std::remove_const<decltype(group_type::dummy_group)>::type; typename std::remove_const<decltype(group_type::dummy_group)>::type;
static constexpr dummy_group_layout static constexpr dummy_group_layout storage[size_policy::min_size()]=
storage[2]={group_type::dummy_group,group_type::dummy_group}; {group_type::dummy_group,group_type::dummy_group};
return reinterpret_cast<group_type*>( return reinterpret_cast<group_type*>(
const_cast<dummy_group_layout*>(storage)); const_cast<dummy_group_layout*>(storage));