view release on metacpan or  search on metacpan

include/boost/container/detail/pair.hpp  view on Meta::CPAN

   template <int Dummy = 0>
   struct std_piecewise_construct_holder
   {
      static ::std::piecewise_construct_t *dummy;
   };

   template <int Dummy>
   ::std::piecewise_construct_t *std_piecewise_construct_holder<Dummy>::dummy =
      reinterpret_cast< ::std::piecewise_construct_t *>(0x01234);  //Avoid sanitizer errors on references to null pointers

typedef const std::piecewise_construct_t & piecewise_construct_t;

struct try_emplace_t{};

#else

//! The piecewise_construct_t struct is an empty structure type used as a unique type to
//! disambiguate used to disambiguate between different functions that take two tuple arguments.
typedef unspecified piecewise_construct_t;

#endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED

//! A instance of type
//! piecewise_construct_t
static piecewise_construct_t piecewise_construct = BOOST_CONTAINER_DOC1ST(unspecified, *std_piecewise_construct_holder<>::dummy);

///@cond

namespace dtl {

struct piecewise_construct_use
{
   //Avoid warnings of unused "piecewise_construct"
   piecewise_construct_use()
   {  (void)&::boost::container::piecewise_construct;   }
};

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;
};

template <class T>
struct is_not_pair
{
   static const bool value = !is_pair<T>::value;
};

template <class T>
struct is_std_pair
{
   static const bool value = false;
};

template <class T1, class T2>
struct is_std_pair< std::pair<T1, T2> >
{
   static const bool value = true;
};

struct pair_nat;

template<typename T, typename U, typename V>
void get(T); //to enable ADL

///@endcond

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))
   {}