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Showing content from https://en.cppreference.com/w/cpp/language/../error/error_code/../../../cpp/types/type_info.html below:

std::type_info - cppreference.com

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 has neither default nor copy constructors
(public member function) the virtual destructor makes type_info a polymorphic class
(virtual public member function) can not be copy-assigned
(public member function) checks whether the objects refer to the same type
(public member function) [edit] checks whether the referred type precedes referred type of another type_info
object in the implementation defined order, i.e. orders the referred types
(public member function) [edit] returns a value which is identical for the same types
(public member function) [edit] 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)

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