1/*
2 *
3 * Copyright (c) 1994
4 * Hewlett-Packard Company
5 *
6 * Copyright (c) 1996,1997
7 * Silicon Graphics Computer Systems, Inc.
8 *
9 * Copyright (c) 1997
10 * Moscow Center for SPARC Technology
11 *
12 * Copyright (c) 1999
13 * Boris Fomitchev
14 *
15 * This material is provided "as is", with absolutely no warranty expressed
16 * or implied. Any use is at your own risk.
17 *
18 * Permission to use or copy this software for any purpose is hereby granted
19 * without fee, provided the above notices are retained on all copies.
20 * Permission to modify the code and to distribute modified code is granted,
21 * provided the above notices are retained, and a notice that the code was
22 * modified is included with the above copyright notice.
23 *
24 */
25
26
27/* NOTE: This is an internal header file, included by other STL headers.
28 *   You should not attempt to use it directly.
29 */
30
31#ifndef _STLP_INTERNAL_PAIR_H
32#define _STLP_INTERNAL_PAIR_H
33
34#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
35#  ifndef _STLP_TYPE_TRAITS_H
36#    include <stl/type_traits.h>
37#  endif
38
39#  if !defined (_STLP_MOVE_CONSTRUCT_FWK_H) && !defined (_STLP_NO_MOVE_SEMANTIC)
40#    include <stl/_move_construct_fwk.h>
41#  endif
42#endif
43
44_STLP_BEGIN_NAMESPACE
45
46#if defined (__ANDROID__)
47/* Android has stl_pair.h, prevent using it by defining the header guard. */
48#  define __SGI_STL_INTERNAL_PAIR_H
49#endif
50template <class _T1, class _T2>
51struct pair {
52  typedef _T1 first_type;
53  typedef _T2 second_type;
54
55  _T1 first;
56  _T2 second;
57#if defined (_STLP_CONST_CONSTRUCTOR_BUG)
58  pair() {}
59#else
60  pair() : first(_T1()), second(_T2()) {}
61#endif
62  pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) {}
63
64#if defined (_STLP_MEMBER_TEMPLATES)
65  template <class _U1, class _U2>
66  pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
67
68  pair(const pair<_T1,_T2>& __o) : first(__o.first), second(__o.second) {}
69#endif
70
71#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) && !defined (_STLP_NO_MOVE_SEMANTIC)
72  pair(__move_source<pair<_T1, _T2> > src) : first(_STLP_PRIV _AsMoveSource(src.get().first)),
73                                             second(_STLP_PRIV _AsMoveSource(src.get().second))
74  {}
75#endif
76
77  __TRIVIAL_DESTRUCTOR(pair)
78};
79
80template <class _T1, class _T2>
81inline bool _STLP_CALL operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
82{ return __x.first == __y.first && __x.second == __y.second; }
83
84template <class _T1, class _T2>
85inline bool _STLP_CALL operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
86  return __x.first < __y.first ||
87         (!(__y.first < __x.first) && __x.second < __y.second);
88}
89
90#if defined (_STLP_USE_SEPARATE_RELOPS_NAMESPACE)
91template <class _T1, class _T2>
92inline bool _STLP_CALL operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
93{ return !(__x == __y); }
94
95template <class _T1, class _T2>
96inline bool _STLP_CALL operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
97{ return __y < __x; }
98
99template <class _T1, class _T2>
100inline bool _STLP_CALL operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
101{ return !(__y < __x); }
102
103template <class _T1, class _T2>
104inline bool _STLP_CALL operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
105{ return !(__x < __y); }
106#endif /* _STLP_USE_SEPARATE_RELOPS_NAMESPACE */
107
108#if defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER) && !defined (_STLP_NO_EXTENSIONS)
109template <class _T1, class _T2, int _Sz>
110inline pair<_T1, _T2 const*> make_pair(_T1 const& __x,
111                                       _T2 const (&__y)[_Sz])
112{ return pair<_T1, _T2 const*>(__x, static_cast<_T2 const*>(__y)); }
113
114template <class _T1, class _T2, int _Sz>
115inline pair<_T1 const*, _T2> make_pair(_T1 const (&__x)[_Sz],
116                                       _T2 const& __y)
117{ return pair<_T1 const*, _T2>(static_cast<_T1 const*>(__x), __y); }
118
119template <class _T1, class _T2, int _Sz1, int _Sz2>
120inline pair<_T1 const*, _T2 const*> make_pair(_T1 const (&__x)[_Sz1],
121                                              _T2 const (&__y)[_Sz2]) {
122  return pair<_T1 const*, _T2 const*>(static_cast<_T1 const*>(__x),
123                                      static_cast<_T2 const*>(__y));
124}
125#endif
126
127template <class _T1, class _T2>
128inline pair<_T1, _T2> _STLP_CALL make_pair(_T1 __x, _T2 __y)
129{ return pair<_T1, _T2>(__x, __y); }
130
131_STLP_END_NAMESPACE
132
133#if defined (_STLP_USE_NAMESPACES) || !defined (_STLP_USE_SEPARATE_RELOPS_NAMESPACE)
134_STLP_BEGIN_RELOPS_NAMESPACE
135
136template <class _Tp>
137inline bool _STLP_CALL operator!=(const _Tp& __x, const _Tp& __y)
138{ return !(__x == __y); }
139
140template <class _Tp>
141inline bool _STLP_CALL operator>(const _Tp& __x, const _Tp& __y)
142{ return __y < __x; }
143
144template <class _Tp>
145inline bool _STLP_CALL operator<=(const _Tp& __x, const _Tp& __y)
146{ return !(__y < __x); }
147
148template <class _Tp>
149inline bool _STLP_CALL  operator>=(const _Tp& __x, const _Tp& __y)
150{ return !(__x < __y); }
151
152_STLP_END_RELOPS_NAMESPACE
153#endif
154
155#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
156_STLP_BEGIN_NAMESPACE
157
158template <class _T1, class _T2>
159struct __type_traits<pair<_T1, _T2> > {
160  typedef __type_traits<_T1> _T1Traits;
161  typedef __type_traits<_T2> _T2Traits;
162  typedef typename _Land2<typename _T1Traits::has_trivial_default_constructor,
163                          typename _T2Traits::has_trivial_default_constructor>::_Ret has_trivial_default_constructor;
164  typedef typename _Land2<typename _T1Traits::has_trivial_copy_constructor,
165                          typename _T2Traits::has_trivial_copy_constructor>::_Ret has_trivial_copy_constructor;
166  typedef typename _Land2<typename _T1Traits::has_trivial_assignment_operator,
167                          typename _T2Traits::has_trivial_assignment_operator>::_Ret has_trivial_assignment_operator;
168  typedef typename _Land2<typename _T1Traits::has_trivial_destructor,
169                          typename _T2Traits::has_trivial_destructor>::_Ret has_trivial_destructor;
170  typedef __false_type is_POD_type;
171};
172
173#  if !defined (_STLP_NO_MOVE_SEMANTIC)
174template <class _T1, class _T2>
175struct __move_traits<pair<_T1, _T2> >
176  : _STLP_PRIV __move_traits_help1<_T1, _T2> {};
177#  endif
178
179_STLP_END_NAMESPACE
180#endif
181
182#endif /* _STLP_INTERNAL_PAIR_H */
183
184// Local Variables:
185// mode:C++
186// End:
187