std::type_index(3) Library Functions Manual std::type_index(3) NAME std::type_index - Class type_index. SYNOPSIS #include Public Member Functions type_index (const type_info &__rhs) noexcept size_t hash_code () const noexcept const char * name () const noexcept bool operator!= (const type_index &__rhs) const noexcept bool operator< (const type_index &__rhs) const noexcept bool operator<= (const type_index &__rhs) const noexcept bool operator== (const type_index &__rhs) const noexcept bool operator> (const type_index &__rhs) const noexcept bool operator>= (const type_index &__rhs) const noexcept Detailed Description Class type_index. The class type_index provides a simple wrapper for type_info which can be used as an index type in associative containers (23.6) and in unordered associative containers (23.7). Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ std::type_index(3)