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Add SFINAE to transparent count() overload in unordered_map

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LeonineKing1199
2021-11-22 11:16:04 -08:00
parent f41b3e8295
commit 59db6cf788
2 changed files with 29 additions and 4 deletions
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16
include/boost/unordered/unordered_map.hpp
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@@ -757,7 +757,12 @@ namespace boost {
size_type count(const key_type&) const;
template <class TransparentKey> size_type count(const TransparentKey&) const;
template <class Key>
typename boost::enable_if_c<detail::make_dependent<Key>::value &&
detail::is_transparent<H>::value &&
detail::is_transparent<P>::value,
size_type>::type
count(const Key&) const;
std::pair<iterator, iterator> equal_range(const key_type&);
std::pair<const_iterator, const_iterator> equal_range(
@@ -1840,9 +1845,12 @@ namespace boost {
}
template <class K, class T, class H, class P, class A>
template <class TransparentKey>
typename unordered_map<K, T, H, P, A>::size_type
unordered_map<K, T, H, P, A>::count(const TransparentKey& k) const
template <class Key>
typename boost::enable_if_c<detail::make_dependent<Key>::value &&
detail::is_transparent<H>::value &&
detail::is_transparent<P>::value,
typename unordered_map<K, T, H, P, A>::size_type>::type
unordered_map<K, T, H, P, A>::count(const Key& k) const
{
std::size_t const key_hash =
table::policy::apply_hash(this->hash_function(), k);