This header is part of the type support library.
[edit] Synopsis#include <compare>
namespace std {
class type_index;
template<class T> struct hash;
template<> struct hash<type_index>;
}[edit] Class std::type_index
namespace std {
class type_index {
public:
type_index(const type_info& rhs) noexcept;
bool operator==(const type_index& rhs) const noexcept;
bool operator< (const type_index& rhs) const noexcept;
bool operator> (const type_index& rhs) const noexcept;
bool operator<=(const type_index& rhs) const noexcept;
bool operator>=(const type_index& rhs) const noexcept;
strong_ordering operator<=>(const type_index& rhs) const noexcept;
size_t hash_code() const noexcept;
const char* name() const noexcept;
private:
const type_info* target; // exposition only
// Note that the use of a pointer here, rather than a reference,
// means that the default copy/move constructor and assignment
// operators will be provided and work as expected.
};
}
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