williamr@4: /*
williamr@4:  *
williamr@4:  * Copyright (c) 1994
williamr@4:  * Hewlett-Packard Company
williamr@4:  *
williamr@4:  * Copyright (c) 1996,1997
williamr@4:  * Silicon Graphics Computer Systems, Inc.
williamr@4:  *
williamr@4:  * Copyright (c) 1997
williamr@4:  * Moscow Center for SPARC Technology
williamr@4:  *
williamr@4:  * Copyright (c) 1999 
williamr@4:  * Boris Fomitchev
williamr@4:  *
williamr@4:  * This material is provided "as is", with absolutely no warranty expressed
williamr@4:  * or implied. Any use is at your own risk.
williamr@4:  *
williamr@4:  * Permission to use or copy this software for any purpose is hereby granted 
williamr@4:  * without fee, provided the above notices are retained on all copies.
williamr@4:  * Permission to modify the code and to distribute modified code is granted,
williamr@4:  * provided the above notices are retained, and a notice that the code was
williamr@4:  * modified is included with the above copyright notice.
williamr@4:  *
williamr@4:  */
williamr@4: 
williamr@4: 
williamr@4: /* NOTE: This is an internal header file, included by other STL headers.
williamr@4:  *   You should not attempt to use it directly.
williamr@4:  */
williamr@4: 
williamr@4: #ifndef _STLP_INTERNAL_PAIR_H
williamr@4: #define _STLP_INTERNAL_PAIR_H
williamr@4: 
williamr@4: #include <stl/_construct.h>
williamr@4: 
williamr@4: _STLP_BEGIN_NAMESPACE
williamr@4: 
williamr@4: #ifdef _STLP_USE_TRAP_LEAVE
williamr@4: template <class _T1, class _T2>
williamr@4: struct pair {
williamr@4:   typedef _T1 first_type;
williamr@4:   typedef _T2 second_type;
williamr@4: 
williamr@4:   _T1 first;
williamr@4:   _STLP_StackPusher<_T1> __pusher;
williamr@4:   _T2 second;
williamr@4: 
williamr@4:   // first and second should construct themselves with their default constructors in ANSI order
williamr@4:   pair() : __pusher(&first) {
williamr@4:     CleanupStack::Pop();
williamr@4:   }
williamr@4: 
williamr@4:   pair(const _T1& __a, const _T2& __b) : first(__a), __pusher(&first), second(__b) {
williamr@4:     CleanupStack::Pop();
williamr@4:   }
williamr@4: 
williamr@4:   // undergroud extensions
williamr@4:   pair(const _T1& __a, __false_type) : first(__a), __pusher(&first), second() {
williamr@4:     CleanupStack::Pop();
williamr@4:   }
williamr@4:   pair(__true_type, const _T2& __a) : first(), __pusher(&first), second(__a) {
williamr@4:     CleanupStack::Pop();
williamr@4:   }
williamr@4: 
williamr@4: #if defined (_STLP_MEMBER_TEMPLATES) && !(defined (_STLP_MSVC) && (_STLP_MSVC < 1200))
williamr@4:   template <class _U1, class _U2>
williamr@4:   pair(const pair<_U1, _U2>& __p) : first(__p.first), __pusher(&first), second(__p.second) {
williamr@4:     CleanupStack::Pop();
williamr@4:   }
williamr@4: 
williamr@4:   pair(const pair<_T1,_T2>& __o) : first(__o.first), __pusher(&first), second(__o.second) {
williamr@4:     CleanupStack::Pop();
williamr@4:   }
williamr@4: #endif
williamr@4:   __TRIVIAL_DESTRUCTOR(pair)
williamr@4: };
williamr@4: 
williamr@4: #else
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: struct pair {
williamr@4:   typedef _T1 first_type;
williamr@4:   typedef _T2 second_type;
williamr@4: 
williamr@4:   _T1 first;
williamr@4:   _T2 second;
williamr@4: # if defined (_STLP_CONST_CONSTRUCTOR_BUG)
williamr@4:   pair() {}
williamr@4: # else
williamr@4:   pair() : first(_T1()), second(_T2()) {}
williamr@4: # endif
williamr@4:   pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) {}
williamr@4: 
williamr@4:   // undergroud extensions
williamr@4:   pair(const _T1& __a, __false_type) : first(__a), second() {}
williamr@4:   pair(const _T2& __a, __true_type) : first(), second(__a) {}
williamr@4: 
williamr@4: #if defined (_STLP_MEMBER_TEMPLATES) && !(defined (_STLP_MSVC) && (_STLP_MSVC < 1200))
williamr@4:   template <class _U1, class _U2>
williamr@4:   pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
williamr@4: 
williamr@4:   pair(const pair<_T1,_T2>& __o) : first(__o.first), second(__o.second) {}
williamr@4: #endif
williamr@4:   __TRIVIAL_DESTRUCTOR(pair)
williamr@4: };
williamr@4: #endif
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline bool _STLP_CALL operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
williamr@4: { 
williamr@4:   return __x.first == __y.first && __x.second == __y.second; 
williamr@4: }
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline bool _STLP_CALL operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
williamr@4: { 
williamr@4:   return __x.first < __y.first || 
williamr@4:          (!(__y.first < __x.first) && __x.second < __y.second); 
williamr@4: }
williamr@4: 
williamr@4: #ifdef _STLP_USE_SEPARATE_RELOPS_NAMESPACE
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline bool _STLP_CALL operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
williamr@4:   return !(__x == __y);
williamr@4: }
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline bool _STLP_CALL operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
williamr@4:   return __y < __x;
williamr@4: }
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline bool _STLP_CALL operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
williamr@4:   return !(__y < __x);
williamr@4: }
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline bool _STLP_CALL operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
williamr@4:   return !(__x < __y);
williamr@4: }
williamr@4: 
williamr@4: #endif /* _STLP_USE_SEPARATE_RELOPS_NAMESPACE */
williamr@4: 
williamr@4: 
williamr@4: #if defined(_STLP_FUNCTION_TMPL_PARTIAL_ORDER) && ! defined (_STLP_NO_EXTENSIONS) && ! defined (__BORLANDC__) && ! defined (__DMC__)
williamr@4: template <class _T1, class _T2, int _Sz>
williamr@4: inline pair<_T1, _T2 const*> make_pair(_T1 const& __x,
williamr@4:                                        _T2 const (&__y)[_Sz])
williamr@4: {
williamr@4:   return pair<_T1, _T2 const*>(__x, static_cast<_T2 const*>(__y));
williamr@4: }
williamr@4: 
williamr@4: template <class _T1, class _T2, int _Sz>
williamr@4: inline pair<_T1 const*, _T2> make_pair(_T1 const (&__x)[_Sz],
williamr@4:                                        _T2 const& __y)
williamr@4: {
williamr@4:   return pair<_T1 const*, _T2>(static_cast<_T1 const*>(__x), __y);
williamr@4: }
williamr@4: 
williamr@4: template <class _T1, class _T2, int _Sz1, int _Sz2>
williamr@4: inline pair<_T1 const*, _T2 const*> make_pair(_T1 const (&__x)[_Sz1],
williamr@4:                                               _T2 const (&__y)[_Sz2])
williamr@4: {
williamr@4:   return pair<_T1 const*, _T2 const*>(static_cast<_T1 const*>(__x),
williamr@4:                                       static_cast<_T2 const*>(__y));
williamr@4: }
williamr@4: #endif
williamr@4: 
williamr@4: template <class _T1, class _T2>
williamr@4: inline pair<_T1, _T2> _STLP_CALL make_pair(const _T1& __x, const _T2& __y)
williamr@4: {
williamr@4:   return pair<_T1, _T2>(__x, __y);
williamr@4: }
williamr@4: 
williamr@4: 
williamr@4: _STLP_END_NAMESPACE
williamr@4: 
williamr@4: # if defined (_STLP_USE_NAMESPACES) || ! defined (_STLP_USE_SEPARATE_RELOPS_NAMESPACE) 
williamr@4: _STLP_BEGIN_RELOPS_NAMESPACE
williamr@4: 
williamr@4: template <class _Tp>
williamr@4: inline bool _STLP_CALL operator!=(const _Tp& __x, const _Tp& __y) {
williamr@4:   return !(__x == __y);
williamr@4: }
williamr@4: 
williamr@4: template <class _Tp>
williamr@4: inline bool _STLP_CALL operator>(const _Tp& __x, const _Tp& __y) {
williamr@4:   return __y < __x;
williamr@4: }
williamr@4: 
williamr@4: template <class _Tp>
williamr@4: inline bool _STLP_CALL operator<=(const _Tp& __x, const _Tp& __y) {
williamr@4:   return !(__y < __x);
williamr@4: }
williamr@4: 
williamr@4: template <class _Tp>
williamr@4: inline bool _STLP_CALL  operator>=(const _Tp& __x, const _Tp& __y) {
williamr@4:   return !(__x < __y);
williamr@4: }
williamr@4: 
williamr@4: _STLP_END_RELOPS_NAMESPACE
williamr@4: 
williamr@4: # endif
williamr@4: 
williamr@4: #endif /* _STLP_INTERNAL_PAIR_H */
williamr@4: 
williamr@4: // Local Variables:
williamr@4: // mode:C++
williamr@4: // End: