/*

 *

 * Copyright (c) 1994

 * Hewlett-Packard Company

 *

 * Copyright (c) 1996,1997

 * Silicon Graphics Computer Systems, Inc.

 *

 * Copyright (c) 1997

 * Moscow Center for SPARC Technology

 *

 * Copyright (c) 1999

 * Boris Fomitchev

 *

 * This material is provided "as is", with absolutely no warranty expressed

 * or implied. Any use is at your own risk.

 *

 * Permission to use or copy this software for any purpose is hereby granted

 * without fee, provided the above notices are retained on all copies.

 * Permission to modify the code and to distribute modified code is granted,

 * provided the above notices are retained, and a notice that the code was

 * modified is included with the above copyright notice.

 *

 */

/* NOTE: This is an internal header file, included by other STL headers.

 *   You should not attempt to use it directly.

 */

#ifndef _STLP_INTERNAL_PAIR_H

#define _STLP_INTERNAL_PAIR_H

#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)

#  include <stl/type_traits.h>

#endif

#ifndef _STLP_MOVE_CONSTRUCT_FWK_H

#  include <stl/_move_construct_fwk.h>

#endif

_STLP_BEGIN_NAMESPACE

template <class _T1, class _T2>

struct pair {

  typedef _T1 first_type;

  typedef _T2 second_type;

  _T1 first;

  _T2 second;

#if defined (_STLP_CONST_CONSTRUCTOR_BUG)

  pair() {}

#else

  pair() : first(_T1()), second(_T2()) {}

#endif

  pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) {}

#if defined (_STLP_MEMBER_TEMPLATES) && !(defined (_STLP_MSVC) && (_STLP_MSVC < 1200))

  template <class _U1, class _U2>

  pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}

  pair(const pair<_T1,_T2>& __o) : first(__o.first), second(__o.second) {}

#endif

  pair(__move_source<pair<_T1, _T2> > src) : first(_STLP_PRIV _AsMoveSource(src.get().first)),

                                             second(_STLP_PRIV _AsMoveSource(src.get().second))

  {}

  __TRIVIAL_DESTRUCTOR(pair)

};

template <class _T1, class _T2>

inline bool _STLP_CALL operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)

{ return __x.first == __y.first && __x.second == __y.second; }

template <class _T1, class _T2>

inline bool _STLP_CALL operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {

  return __x.first < __y.first ||

         (!(__y.first < __x.first) && __x.second < __y.second);

}

#if defined (_STLP_USE_SEPARATE_RELOPS_NAMESPACE)

template <class _T1, class _T2>

inline bool _STLP_CALL operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)

{ return !(__x == __y); }

template <class _T1, class _T2>

inline bool _STLP_CALL operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)

{ return __y < __x; }

template <class _T1, class _T2>

inline bool _STLP_CALL operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)

{ return !(__y < __x); }

template <class _T1, class _T2>

inline bool _STLP_CALL operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)

{ return !(__x < __y); }

#endif /* _STLP_USE_SEPARATE_RELOPS_NAMESPACE */

#if defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER) && !defined (_STLP_NO_EXTENSIONS)

template <class _T1, class _T2, int _Sz>

inline pair<_T1, _T2 const*> make_pair(_T1 const& __x,

                                       _T2 const (&__y)[_Sz])

{ return pair<_T1, _T2 const*>(__x, static_cast<_T2 const*>(__y)); }

template <class _T1, class _T2, int _Sz>

inline pair<_T1 const*, _T2> make_pair(_T1 const (&__x)[_Sz],

                                       _T2 const& __y)

{ return pair<_T1 const*, _T2>(static_cast<_T1 const*>(__x), __y); }

template <class _T1, class _T2, int _Sz1, int _Sz2>

inline pair<_T1 const*, _T2 const*> make_pair(_T1 const (&__x)[_Sz1],

                                              _T2 const (&__y)[_Sz2]) {

  return pair<_T1 const*, _T2 const*>(static_cast<_T1 const*>(__x),

                                      static_cast<_T2 const*>(__y));

}

#endif

template <class _T1, class _T2>

inline pair<_T1, _T2> _STLP_CALL make_pair(_T1 __x, _T2 __y)

{ return pair<_T1, _T2>(__x, __y); }

_STLP_END_NAMESPACE

#if defined (_STLP_USE_NAMESPACES) || !defined (_STLP_USE_SEPARATE_RELOPS_NAMESPACE)

_STLP_BEGIN_RELOPS_NAMESPACE

template <class _Tp>

inline bool _STLP_CALL operator!=(const _Tp& __x, const _Tp& __y)

{ return !(__x == __y); }

template <class _Tp>

inline bool _STLP_CALL operator>(const _Tp& __x, const _Tp& __y)

{ return __y < __x; }

template <class _Tp>

inline bool _STLP_CALL operator<=(const _Tp& __x, const _Tp& __y)

{ return !(__y < __x); }

template <class _Tp>

inline bool _STLP_CALL  operator>=(const _Tp& __x, const _Tp& __y)

{ return !(__x < __y); }

_STLP_END_RELOPS_NAMESPACE

#endif

#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)

_STLP_BEGIN_NAMESPACE

template <class _T1, class _T2>

struct __type_traits<pair<_T1, _T2> > {

  typedef __type_traits<_T1> _T1Traits;

  typedef __type_traits<_T2> _T2Traits;

  typedef typename _Land2<typename _T1Traits::has_trivial_default_constructor,

                          typename _T2Traits::has_trivial_default_constructor>::_Ret has_trivial_default_constructor;

  typedef typename _Land2<typename _T1Traits::has_trivial_copy_constructor,

                          typename _T2Traits::has_trivial_copy_constructor>::_Ret has_trivial_copy_constructor;

  typedef typename _Land2<typename _T1Traits::has_trivial_assignment_operator,

                          typename _T2Traits::has_trivial_assignment_operator>::_Ret has_trivial_assignment_operator;

  typedef typename _Land2<typename _T1Traits::has_trivial_destructor,

                          typename _T2Traits::has_trivial_destructor>::_Ret has_trivial_destructor;

  typedef __false_type is_POD_type;

#if defined (__BORLANDC__) && (__BORLANDC__ < 0x560)

  // disable incorrect "dependent type qualifier" error

  typedef __false_type implemented;

#endif

};

template <class _T1, class _T2>

struct __move_traits<pair<_T1, _T2> >

  : _STLP_PRIV __move_traits_help1<_T1, _T2> {};

_STLP_END_NAMESPACE

#endif /* _STLP_CLASS_PARTIAL_SPECIALIZATION */

#endif /* _STLP_INTERNAL_PAIR_H */

// Local Variables:

// mode:C++

// End: