标准库头文件 <typeinfo>

标准库头文件 <typeinfo>_C++中文网

此头文件是类型支持库的一部分。

类

概要

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

类 std::type_info

class type_info {
public:
  virtual ~type_info();
  bool operator==(const type_info& rhs) const noexcept;
  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& rhs) = delete; // 不能复制
  type_info& operator=(const type_info& rhs) = delete; // 不能复制
};

类 std::bad_cast

class bad_cast : public exception {
public:
  bad_cast() noexcept;
  bad_cast(const bad_cast&) noexcept;
  bad_cast& operator=(const bad_cast&) noexcept;
  const char* what() const noexcept override;
};

类 std::bad_typeid

class bad_typeid : public exception {
public:
  bad_typeid() noexcept;
  bad_typeid(const bad_typeid&) noexcept;
  bad_typeid& operator=(const bad_typeid&) noexcept;
  const char* what() const noexcept override;
};