#pragma once

#include <initializer_list>

namespace std {
  template<class T> void swap(T &a, T &b);
  template<class T, size_t N> void swap(T (&a)[N], T (&b)[N]);

  template<class T> struct remove_reference      {typedef T type;};
  template<class T> struct remove_reference<T&>  {typedef T type;};
  template<class T> struct remove_reference<T&&> {typedef T type;};

  template<class T> constexpr remove_reference<T>::type &&move(T &&) noexcept;

  template<class T1, class T2> struct pair;
}