Return a copy of the value associated with the specified key in a given
jss::concurrent_map object. If there is
no such value at the point of the call, insert one, as-if map.emplace(key,DataType()),
and return a copy of that value.
DataType operator[](KeyType const& key);
A copy of the value associated with key
in *this
at the point of the call. If there is no such value, creates one
as-if this->emplace(key,DataType()),
and returns a copy of the newly-constructed value.
Any exceptions thrown by the default constructor, copy constructor
or move constructor of DataType.
Any exception thrown by the application of the Hasher
or KeyEquals objects.
operator[]()
may be called concurrently with any other member function of jss::concurrent_map on a given instance
(except for the constructor and destructor) without external synchronization.
#include <jss/concurrent_map.hpp>