std::type_info - cppreference.com (original) (raw)
The class type_info holds implementation-specific information about a type, including the name of the type and means to compare two types for equality or collating order. This is the class returned by the typeid operator.
The type_info class is neither CopyConstructible nor CopyAssignable.
[edit] Member functions
| (constructor)[deleted] | has neither default nor copy constructors (public member function) |
|---|---|
| (destructor)[virtual] | the virtual destructor makes type_info a polymorphic class (virtual public member function) |
| operator=[deleted] | can not be copy-assigned (public member function) |
| operator==operator!=(removed in C++20) | checks whether the objects refer to the same type (public member function) [edit] |
| before | checks whether the referred type precedes referred type of another type_infoobject in the implementation defined order, i.e. orders the referred types (public member function) [edit] |
| hash_code(C++11) | returns a value which is identical for the same types (public member function) [edit] |
| name | implementation defined name of the type (public member function) [edit] |
[edit] See also
| | wrapper around a type_info object, that can be used as index in associative and unordered associative containers (class) [edit] | | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- | | typeid | Queries information of a type, returning a std::type_info object representing the type(built-in operator) |