[C++11] Regular type

1. Make your types regular (if possible)

2. Make your types’ move operations noexcept (if possible)

 
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 &); 
 // friend void swap(RegularCxx11 &, RegularCxx11 &); // throw() 
}; 
namespace std { 
 template<> struct hash<RegularCxx11>; 
}

 
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 >
{};