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Standard library header <typeinfo>

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This header is part of the type support library.

Contents

[edit] Classes

contains some type's information, generated by the implementation.
This is the class returned by the typeid operator.
(class) [edit]
exception that is thrown if an argument in a typeid expression is null
(class) [edit]
exception that is thrown by an invalid dynamic_cast expression, i.e. a cast of reference type fails
(class) [edit]

[edit] Synopsis

namespace std {
  class type_info;
  class bad_cast;
  class bad_typeid;
}

[edit] Class std::type_info

namespace std {
  class type_info {
  public:
    virtual ~type_info();
    constexpr bool operator==(const type_info& rhs) const noexcept;
    bool before(const type_info& rhs) const noexcept;
    size_t hash_code() const noexcept;
    const char* name() const noexcept;
 
    type_info(const type_info&) = delete;                   // cannot be copied
    type_info& operator=(const type_info&) = delete;        // cannot be copied
  };
}

[edit] Class std::bad_cast

namespace std {
  class bad_cast : public exception {
  public:
    // see [exception] for the specification of the special member functions
    const char* what() const noexcept override;
  };
}

[edit] Class std::bad_typeid

namespace std {
  class bad_typeid : public exception {
  public:
    // see [exception] for the specification of the special member functions
    const char* what() const noexcept override;
  };
}