comparison DEPENDENCIES/generic/include/boost/container/detail/pair.hpp @ 16:2665513ce2d3

Add boost headers

+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2012.
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_PAIR_HPP
+#define BOOST_CONTAINER_CONTAINER_DETAIL_PAIR_HPP
+
+#if defined(_MSC_VER)
+#  pragma once
+#endif
+
+#include "config_begin.hpp"
+#include <boost/container/detail/workaround.hpp>
+
+#include <boost/container/detail/mpl.hpp>
+#include <boost/container/detail/type_traits.hpp>
+#include <boost/container/detail/mpl.hpp>
+#include <boost/container/detail/type_traits.hpp>
+
+#include <utility>   //std::pair
+#include <algorithm> //std::swap
+
+#include <boost/move/utility.hpp>
+#include <boost/type_traits/is_class.hpp>
+
+#ifndef BOOST_CONTAINER_PERFECT_FORWARDING
+#include <boost/container/detail/preprocessor.hpp>
+#endif
+
+namespace boost {
+namespace container {
+namespace container_detail {
+
+template <class T1, class T2>
+struct pair;
+
+template <class T>
+struct is_pair
+{
+   static const bool value = false;
+};
+
+template <class T1, class T2>
+struct is_pair< pair<T1, T2> >
+{
+   static const bool value = true;
+};
+
+template <class T1, class T2>
+struct is_pair< std::pair<T1, T2> >
+{
+   static const bool value = true;
+};
+
+struct pair_nat;
+
+struct piecewise_construct_t { };
+static const piecewise_construct_t piecewise_construct = piecewise_construct_t();
+
+/*
+template <class T1, class T2>
+struct pair
+{
+    template <class U, class V> pair(pair<U, V>&& p);
+    template <class... Args1, class... Args2>
+        pair(piecewise_construct_t, tuple<Args1...> first_args,
+             tuple<Args2...> second_args);
+
+    template <class U, class V> pair& operator=(const pair<U, V>& p);
+    pair& operator=(pair&& p) noexcept(is_nothrow_move_assignable<T1>::value &&
+                                       is_nothrow_move_assignable<T2>::value);
+    template <class U, class V> pair& operator=(pair<U, V>&& p);
+
+    void swap(pair& p) noexcept(noexcept(swap(first, p.first)) &&
+                                noexcept(swap(second, p.second)));
+};
+
+template <class T1, class T2> bool operator==(const pair<T1,T2>&, const pair<T1,T2>&);
+template <class T1, class T2> bool operator!=(const pair<T1,T2>&, const pair<T1,T2>&);
+template <class T1, class T2> bool operator< (const pair<T1,T2>&, const pair<T1,T2>&);
+template <class T1, class T2> bool operator> (const pair<T1,T2>&, const pair<T1,T2>&);
+template <class T1, class T2> bool operator>=(const pair<T1,T2>&, const pair<T1,T2>&);
+template <class T1, class T2> bool operator<=(const pair<T1,T2>&, const pair<T1,T2>&);
+*/
+
+
+template <class T1, class T2>
+struct pair
+{
+   private:
+   BOOST_COPYABLE_AND_MOVABLE(pair)
+
+   public:
+   typedef T1 first_type;
+   typedef T2 second_type;
+
+   T1 first;
+   T2 second;
+
+   //Default constructor
+   pair()
+      : first(), second()
+   {}
+
+   //pair copy assignment
+   pair(const pair& x)
+      : first(x.first), second(x.second)
+   {}
+
+   //pair move constructor
+   pair(BOOST_RV_REF(pair) p)
+      : first(::boost::move(p.first)), second(::boost::move(p.second))
+   {}
+
+   template <class D, class S>
+   pair(const pair<D, S> &p)
+      : first(p.first), second(p.second)
+   {}
+
+   template <class D, class S>
+   pair(BOOST_RV_REF_BEG pair<D, S> BOOST_RV_REF_END p)
+      : first(::boost::move(p.first)), second(::boost::move(p.second))
+   {}
+
+   //pair from two values
+   pair(const T1 &t1, const T2 &t2)
+      : first(t1)
+      , second(t2)
+   {}
+
+   template<class U, class V>
+   pair(BOOST_FWD_REF(U) u, BOOST_FWD_REF(V) v)
+      : first(::boost::forward<U>(u))
+      , second(::boost::forward<V>(v))
+   {}
+
+   //And now compatibility with std::pair
+   pair(const std::pair<T1, T2>& x)
+      : first(x.first), second(x.second)
+   {}
+
+   template <class D, class S>
+   pair(const std::pair<D, S>& p)
+      : first(p.first), second(p.second)
+   {}
+
+   pair(BOOST_RV_REF_BEG std::pair<T1, T2> BOOST_RV_REF_END p)
+      : first(::boost::move(p.first)), second(::boost::move(p.second))
+   {}
+
+   template <class D, class S>
+   pair(BOOST_RV_REF_BEG std::pair<D, S> BOOST_RV_REF_END p)
+      : first(::boost::move(p.first)), second(::boost::move(p.second))
+   {}
+
+   //piecewise_construct missing
+   //template <class U, class V> pair(pair<U, V>&& p);
+   //template <class... Args1, class... Args2>
+   //   pair(piecewise_construct_t, tuple<Args1...> first_args,
+   //        tuple<Args2...> second_args);
+/*
+   //Variadic versions
+   template<class U>
+   pair(BOOST_CONTAINER_PP_PARAM(U, u), typename container_detail::disable_if
+         < container_detail::is_pair< typename container_detail::remove_ref_const<U>::type >, pair_nat>::type* = 0)
+      : first(::boost::forward<U>(u))
+      , second()
+   {}
+
+   #ifdef BOOST_CONTAINER_PERFECT_FORWARDING
+
+   template<class U, class V, class ...Args>
+   pair(U &&u, V &&v)
+      : first(::boost::forward<U>(u))
+      , second(::boost::forward<V>(v), ::boost::forward<Args>(args)...)
+   {}
+
+   #else
+
+   #define BOOST_PP_LOCAL_MACRO(n)                                                            \
+   template<class U, BOOST_PP_ENUM_PARAMS(n, class P)>                                        \
+   pair(BOOST_CONTAINER_PP_PARAM(U, u)                                                          \
+       ,BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_LIST, _))                                  \
+      : first(::boost::forward<U>(u))                             \
+      , second(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))                        \
+   {}                                                                                         \
+   //!
+   #define BOOST_PP_LOCAL_LIMITS (1, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
+   #include BOOST_PP_LOCAL_ITERATE()
+   #endif
+*/
+   //pair copy assignment
+   pair& operator=(BOOST_COPY_ASSIGN_REF(pair) p)
+   {
+      first  = p.first;
+      second = p.second;
+      return *this;
+   }
+
+   //pair move assignment
+   pair& operator=(BOOST_RV_REF(pair) p)
+   {
+      first  = ::boost::move(p.first);
+      second = ::boost::move(p.second);
+      return *this;
+   }
+
+   template <class D, class S>
+   typename ::boost::container::container_detail::enable_if_c
+      < !(::boost::container::container_detail::is_same<T1, D>::value &&
+          ::boost::container::container_detail::is_same<T2, S>::value)
+      , pair &>::type
+      operator=(const pair<D, S>&p)
+   {
+      first  = p.first;
+      second = p.second;
+      return *this;
+   }
+
+   template <class D, class S>
+   typename ::boost::container::container_detail::enable_if_c
+      < !(::boost::container::container_detail::is_same<T1, D>::value &&
+          ::boost::container::container_detail::is_same<T2, S>::value)
+      , pair &>::type
+      operator=(BOOST_RV_REF_BEG pair<D, S> BOOST_RV_REF_END p)
+   {
+      first  = ::boost::move(p.first);
+      second = ::boost::move(p.second);
+      return *this;
+   }
+
+   //std::pair copy assignment
+   pair& operator=(const std::pair<T1, T2> &p)
+   {
+      first  = p.first;
+      second = p.second;
+      return *this;
+   }
+
+   template <class D, class S>
+   pair& operator=(const std::pair<D, S> &p)
+   {
+      first  = ::boost::move(p.first);
+      second = ::boost::move(p.second);
+      return *this;
+   }
+
+   //std::pair move assignment
+   pair& operator=(BOOST_RV_REF_BEG std::pair<T1, T2> BOOST_RV_REF_END p)
+   {
+      first  = ::boost::move(p.first);
+      second = ::boost::move(p.second);
+      return *this;
+   }
+
+   template <class D, class S>
+   pair& operator=(BOOST_RV_REF_BEG std::pair<D, S> BOOST_RV_REF_END p)
+   {
+      first  = ::boost::move(p.first);
+      second = ::boost::move(p.second);
+      return *this;
+   }
+
+   //swap
+   void swap(pair& p)
+   {
+      using std::swap;
+      swap(this->first, p.first);
+      swap(this->second, p.second);
+   }
+};
+
+template <class T1, class T2>
+inline bool operator==(const pair<T1,T2>& x, const pair<T1,T2>& y)
+{  return static_cast<bool>(x.first == y.first && x.second == y.second);  }
+
+template <class T1, class T2>
+inline bool operator< (const pair<T1,T2>& x, const pair<T1,T2>& y)
+{  return static_cast<bool>(x.first < y.first ||
+                         (!(y.first < x.first) && x.second < y.second)); }
+
+template <class T1, class T2>
+inline bool operator!=(const pair<T1,T2>& x, const pair<T1,T2>& y)
+{  return static_cast<bool>(!(x == y));  }
+
+template <class T1, class T2>
+inline bool operator> (const pair<T1,T2>& x, const pair<T1,T2>& y)
+{  return y < x;  }
+
+template <class T1, class T2>
+inline bool operator>=(const pair<T1,T2>& x, const pair<T1,T2>& y)
+{  return static_cast<bool>(!(x < y)); }
+
+template <class T1, class T2>
+inline bool operator<=(const pair<T1,T2>& x, const pair<T1,T2>& y)
+{  return static_cast<bool>(!(y < x)); }
+
+template <class T1, class T2>
+inline pair<T1, T2> make_pair(T1 x, T2 y)
+{  return pair<T1, T2>(x, y); }
+
+template <class T1, class T2>
+inline void swap(pair<T1, T2>& x, pair<T1, T2>& y)
+{
+   swap(x.first, y.first);
+   swap(x.second, y.second);
+}
+
+}  //namespace container_detail {
+}  //namespace container {
+
+
+//Without this specialization recursive flat_(multi)map instantiation fails
+//because is_enum needs to instantiate the recursive pair, leading to a compilation error).
+//This breaks the cycle clearly stating that pair is not an enum avoiding any instantiation.
+template<class T>
+struct is_enum;
+
+template<class T, class U>
+struct is_enum< ::boost::container::container_detail::pair<T, U> >
+{
+   static const bool value = false;
+};
+
+//This specialization is needed to avoid instantiation of pair in
+//is_class, and allow recursive maps.
+template <class T1, class T2>
+struct is_class< ::boost::container::container_detail::pair<T1, T2> >
+   : public ::boost::true_type
+{};
+
+#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+
+template<class T1, class T2>
+struct has_move_emulation_enabled< ::boost::container::container_detail::pair<T1, T2> >
+   : ::boost::true_type
+{};
+
+#endif
+
+
+}  //namespace boost {
+
+#include <boost/container/detail/config_end.hpp>
+
+#endif   //#ifndef BOOST_CONTAINER_DETAIL_PAIR_HPP