C++ Library - <typeinfo>

Introduction

It contains type information and stores information about a type. It can be used to compare two types or to retrieve information identifying a type.

Following is the declaration for std::type_info.

class type_info;

class type_info;

Sr.No.	Member function & description
1	operator== It contains type information.
2	operator!= It throws exception on failure to dynamic cast.
3	before It throws exception on typeid of null pointe.
4	name It throws exception on failure to dynamic cast.
5	hash_code It throws exception on typeid of null pointe.

typeinfo.htm