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Update node-based foa containers to default their element_type default constructor and delete the copy constructor to get the appropriate type-based optimizations

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Christian Mazakas
2023-01-27 14:41:48 -08:00
parent fd7d888832
commit 5b706bb7b5
2 changed files with 10 additions and 10 deletions
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10
include/boost/unordered/unordered_node_map.hpp
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@ -48,15 +48,15 @@ namespace boost {
value_type* p; value_type* p;
/* /*
* we use a defined copy constructor here so the type is no longer * we use a deleted copy constructor here so the type is no longer
* trivially copy-constructible which inhibits our memcpy * trivially copy-constructible which inhibits our memcpy
* optimizations when copying the tables * optimizations when copying the tables
*/ */
element_type() : p(nullptr) {} element_type() = default;
element_type(element_type const& rhs) : p(rhs.p) {} element_type(element_type const&) = delete;
}; };
static value_type& value_from(element_type x) { return *(x.p); } static value_type& value_from(element_type const& x) { return *(x.p); }
template <class K, class V> template <class K, class V>
static raw_key_type const& extract(std::pair<K, V> const& kv) static raw_key_type const& extract(std::pair<K, V> const& kv)
@ -64,7 +64,7 @@ namespace boost {
return kv.first; return kv.first;
} }
static raw_key_type const& extract(element_type kv) static raw_key_type const& extract(element_type const& kv)
{ {
return kv.p->first; return kv.p->first;
} }

10
include/boost/unordered/unordered_node_set.hpp
View File

@ -45,16 +45,16 @@ namespace boost {
value_type* p; value_type* p;
/* /*
* we use a defined copy constructor here so the type is no longer * we use a deleted copy constructor here so the type is no longer
* trivially copy-constructible which inhibits our memcpy * trivially copy-constructible which inhibits our memcpy
* optimizations when copying the tables * optimizations when copying the tables
*/ */
element_type() : p(nullptr) {} element_type() = default;
element_type(element_type const& rhs) : p(rhs.p) {} element_type(element_type const&) = delete;
}; };
static value_type& value_from(element_type x) { return *x.p; } static value_type& value_from(element_type const& x) { return *x.p; }
static Key const& extract(element_type k) { return *k.p; } static Key const& extract(element_type const& k) { return *k.p; }
static element_type&& move(element_type& x) { return std::move(x); } static element_type&& move(element_type& x) { return std::move(x); }
static value_type&& move(value_type& x) { return std::move(x); } static value_type&& move(value_type& x) { return std::move(x); }