boostorg/unordered
1
0
Fork 1
mirror of https://github.com/boostorg/unordered.git synced 2025-11-01 16:21:37 +01:00
Code Issues Packages Projects Releases Wiki Activity

Implement insert_or_assign.

Browse Source
This commit is contained in:
Daniel James
2017-02-27 03:59:02 +00:00
parent 8fa93cc55b
commit 958d206bb6
4 changed files with 193 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
include/boost/unordered/detail/implementation.hpp
View File

@@ -3704,6 +3704,27 @@ struct table_impl : boost::unordered::detail::table<Types>
}
}
template <typename Key, typename M>
emplace_return insert_or_assign_impl(
BOOST_FWD_REF(Key) k, BOOST_FWD_REF(M) obj)
{
std::size_t key_hash = this->hash(k);
node_pointer pos = this->find_node(key_hash, k);
if (pos) {
pos->value().second = boost::forward<M>(obj);
return emplace_return(iterator(pos), false);
} else {
return emplace_return(
iterator(this->resize_and_add_node(
boost::unordered::detail::func::construct_node_pair(
this->node_alloc(), boost::forward<Key>(k),
boost::forward<M>(obj)),
key_hash)),
true);
}
}
////////////////////////////////////////////////////////////////////////
// Insert range methods
//

31
include/boost/unordered/unordered_map.hpp
View File

@@ -342,6 +342,37 @@ template <class K, class T, class H, class P, class A> class unordered_map
return this->emplace_hint(hint, boost::move(x));
}
template <class M>
std::pair<iterator, bool> insert_or_assign(
key_type const& k, BOOST_FWD_REF(M) obj)
{
return table_.insert_or_assign_impl(k, boost::forward<M>(obj));
}
template <class M>
iterator insert_or_assign(
const_iterator, key_type const& k, BOOST_FWD_REF(M) obj)
{
return table_.insert_or_assign_impl(k, boost::forward<M>(obj)).first;
}
template <class M>
std::pair<iterator, bool> insert_or_assign(
BOOST_RV_REF(key_type) k, BOOST_FWD_REF(M) obj)
{
return table_.insert_or_assign_impl(
boost::move(k), boost::forward<M>(obj));
}
template <class M>
iterator insert_or_assign(
const_iterator, BOOST_RV_REF(key_type) k, BOOST_FWD_REF(M) obj)
{
return table_
.insert_or_assign_impl(boost::move(k), boost::forward<M>(obj))
.first;
}
template <class InputIt> void insert(InputIt, InputIt);
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)