Insert into this multimap a value_type object created from the specified value. If a range containing elements equivalent to value_type object already exists, insert the value_type object at the end of that range. Return an iterator referring to the newly inserted value_type object. This method requires that the (template parameter) types KEY and VALUE both be move-insertable into this multimap (see {Requirements on KEY and VALUE}), and the value_type be constructible from the (template parameter) ALT_VALUE_TYPE.
Declared in <bslstl_multimap.h>
template<class ALT_VALUE_TYPE>
iterator
insert(ALT_VALUE_TYPE&& value)
requires std::is_constructible<value_type,
ALT_VALUE_TYPE&&>::value;