Obtain an iterator referring
to the first entry in a given jss::concurrent_map
instance, or end()
if the map is empty.
iterator begin();
An iterator referring
to the first key-value pair in *this, or this->end() if the map is empty.
Nothing.
begin()
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>