__gnu_pbds::null_type.3cxx

       Generated automatically by Doxygen for libstdc++ from the source code.

                                                    libstdc++                        __gnu_pbds::null_type(3cxx)

       Represents no type, or absence of type, for template tricks.

       In a mapped-policy, indicates that an associative container is a set.

       In a list-update policy, indicates that each link does not need metadata.

       In a hash policy, indicates that the combining hash function is actually a ranged hash function.

       In a probe policy, indicates that the combining probe function is actually a ranged probe function.

       __gnu_pbds::null_type - Represents no type, or absence of type, for template tricks.

       #include <tag_and_trait.hpp>

       Inherited by __gnu_pbds::null_node_update<_Tp1,_Tp2,_Tp3,_Tp4>.