c++11_regular

c++11_regular.h

// from Eric Niebler's talk from C++Now 2014 https://www.youtube.com/watch?v=zgOF4NrQllo
class RegularCxx11 {
 RegularCxx11();
 RegularCxx11(RegularCxx11 const &);
 RegularCxx11(RegularCxx11 &&) noexcept;
 ~RegularCxx11();
 RegularCxx11 & operator=(RegularCxx11 const &);
 RegularCxx11 & operator=(RegularCxx11 &&) noexcept;
 friend bool operator==(RegularCxx11 const &, RegularCxx11 const &);
 friend bool operator!=(RegularCxx11 const &, RegularCxx11 const &);
 friend bool operator<(RegularCxx11 const &, RegularCxx11 const &);
 // no swap any more as we have noexcept move types so std::swap is fine to use
};
// if using in associative containers ? danger danger - can you implement this?
namespace std {
 template<> struct hash<RegularCxx11>;
}

// ###########check 

template<typename T>
struct is_regular
 : std::integral_constant< bool,
 std::is_default_constructible<T>::value &&
 std::is_copy_constructible<T>::value &&
 std::is_move_constructible<T>::value &&
 std::is_copy_assignable<T>::value &&
 std::is_move_assignable<T>::value > {};

struct T {};
static_assert(is_regular<T>::value, "huh?");