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// utility standard header |
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#pragma once |
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#ifndef _UTILITY_ |
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#define _UTILITY_ |
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#ifndef RC_INVOKED |
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#include <iosfwd> |
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#ifdef _MSC_VER |
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#pragma pack(push,_CRT_PACKING) |
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#pragma warning(push,3) |
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#endif /* _MSC_VER */ |
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_STD_BEGIN |
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// TEMPLATE FUNCTION swap (from <algorithm>) |
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template<class _Ty> inline |
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void swap(_Ty& _Left, _Ty& _Right) |
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{ // exchange values stored at _Left and _Right |
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if (&_Left != &_Right) |
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{ // different, worth swapping |
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_Ty _Tmp = _Left; |
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_Left = _Right; |
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_Right = _Tmp; |
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} |
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} |
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// TEMPLATE FUNCTION _Swap_adl |
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template<class _Ty> inline |
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void _Swap_adl(_Ty& _Left, _Ty& _Right) |
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{ // exchange values stored at _Left and _Right, using ADL |
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swap(_Left, _Right); |
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} |
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// TEMPLATE STRUCT pair |
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template<class _Ty1, |
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class _Ty2> |
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struct pair |
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{ // store a pair of values |
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typedef pair<_Ty1, _Ty2> _Myt; |
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typedef _Ty1 first_type; |
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typedef _Ty2 second_type; |
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pair() |
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: first(_Ty1()), second(_Ty2()) |
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{ // construct from defaults |
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} |
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pair(const _Ty1& _Val1, const _Ty2& _Val2) |
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: first(_Val1), second(_Val2) |
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{ // construct from specified values |
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} |
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template<class _Other1, |
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class _Other2> |
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pair(const pair<_Other1, _Other2>& _Right) |
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: first(_Right.first), second(_Right.second) |
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{ // construct from compatible pair |
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} |
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void swap(_Myt& _Right) |
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{ // exchange contents with _Right |
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if (this != &_Right) |
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{ // different, worth swapping |
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_STD _Swap_adl(first, _Right.first); |
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_STD _Swap_adl(second, _Right.second); |
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} |
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} |
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_Ty1 first; // the first stored value |
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_Ty2 second; // the second stored value |
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}; |
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// pair TEMPLATE FUNCTIONS |
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template<class _Ty1, |
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class _Ty2> inline |
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void swap(pair<_Ty1, _Ty2>& _Left, pair<_Ty1, _Ty2>& _Right) |
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{ // swap _Left and _Right pairs |
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_Left.swap(_Right); |
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} |
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template<class _Ty1, |
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const pair<_Ty1, _Ty2>& _Right) |
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{ // test for pair inequality |
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return (!(_Left == _Right)); |
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} |
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template<class _Ty1, |
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class _Ty2> inline |
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bool operator<(const pair<_Ty1, _Ty2>& _Left, |
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const pair<_Ty1, _Ty2>& _Right) |
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{ // test if _Left < _Right for pairs |
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return (_Left.first < _Right.first || |
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!(_Right.first < _Left.first) && _Left.second < _Right.second); |
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} |
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template<class _Ty1, |
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class _Ty2> inline |
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bool operator>(const pair<_Ty1, _Ty2>& _Left, |
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const pair<_Ty1, _Ty2>& _Right) |
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{ // test if _Left > _Right for pairs |
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return (_Right < _Left); |
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} |
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template<class _Ty1, |
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class _Ty2> inline |
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bool operator<=(const pair<_Ty1, _Ty2>& _Left, |
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const pair<_Ty1, _Ty2>& _Right) |
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{ // test if _Left <= _Right for pairs |
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return (!(_Right < _Left)); |
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} |
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template<class _Ty1, |
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class _Ty2> inline |
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bool operator>=(const pair<_Ty1, _Ty2>& _Left, |
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const pair<_Ty1, _Ty2>& _Right) |
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{ // test if _Left >= _Right for pairs |
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return (!(_Left < _Right)); |
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} |
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template<class _Ty1, |
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class _Ty2> inline |
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pair<_Ty1, _Ty2> make_pair(_Ty1 _Val1, _Ty2 _Val2) |
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{ // return pair composed from arguments |
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return (pair<_Ty1, _Ty2>(_Val1, _Val2)); |
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} |
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// TEMPLATE OPERATORS |
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namespace rel_ops |
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{ // nested namespace to hide relational operators from std |
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template<class _Ty> inline |
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bool operator!=(const _Ty& _Left, const _Ty& _Right) |
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{ // test for inequality, in terms of equality |
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return (!(_Left == _Right)); |
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} |
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template<class _Ty> inline |
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bool operator>(const _Ty& _Left, const _Ty& _Right) |
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{ // test if _Left > _Right, in terms of operator< |
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return (_Right < _Left); |
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} |
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template<class _Ty> inline |
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bool operator<=(const _Ty& _Left, const _Ty& _Right) |
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{ // test if _Left <= _Right, in terms of operator< |
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return (!(_Right < _Left)); |
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} |
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template<class _Ty> inline |
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bool operator>=(const _Ty& _Left, const _Ty& _Right) |
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{ // test if _Left >= _Right, in terms of operator< |
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return (!(_Left < _Right)); |
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} |
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} |
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_STD_END |
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#if _HAS_TR1 |
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_STD_BEGIN |
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namespace tr1 { // TR1 additions |
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// TUPLE INTERFACE TO std::tr1::pair |
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template<class _Tuple> |
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struct tuple_size; |
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template<int _Idx, |
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class _Tuple> |
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struct tuple_element; |
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template<class _Ty1, |
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class _Ty2> |
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struct tuple_size<std::pair<_Ty1, _Ty2> > |
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{ // struct to determine number of elements in pair |
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static const int value = 2; |
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}; |
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template<int _Idx, |
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class _Ty> |
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struct _Pair_data; |
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template<class _Ty1, |
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class _Ty2> |
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struct _Pair_data<0, std::pair<_Ty1, _Ty2> > |
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{ // struct to pick out argument type and value at index 0 |
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typedef _Ty1& _Type; |
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typedef const _Ty1& _CType; |
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static _Type _Val(std::pair<_Ty1, _Ty2>& _Pr) |
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{ // return value |
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return (_Pr.first); |
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} |
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static _CType _Val(const std::pair<_Ty1, _Ty2>& _Pr) |
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{ // return value |
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return (_Pr.first); |
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} |
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}; |
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template<class _Ty1, |
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class _Ty2> |
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struct _Pair_data<1, std::pair<_Ty1, _Ty2> > |
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{ // struct to pick out argument type and value at index 1 |
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typedef _Ty2& _Type; |
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typedef const _Ty2& _CType; |
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static _Type _Val(std::pair<_Ty1, _Ty2>& _Pr) |
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{ // return value |
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return (_Pr.second); |
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} |
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static _CType _Val(const std::pair<_Ty1, _Ty2>& _Pr) |
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{ // return value |
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return (_Pr.second); |
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} |
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}; |
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template<class _Ty1, |
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class _Ty2> |
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struct tuple_element<0, std::pair<_Ty1, _Ty2> > |
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{ // struct to determine type of element 0 in pair |
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typedef _Ty1 type; |
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}; |
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template<class _Ty1, |
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class _Ty2> |
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struct tuple_element<1, std::pair<_Ty1, _Ty2> > |
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{ // struct to determine type of element 1 in pair |
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typedef _Ty2 type; |
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}; |
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template<int _Idx, |
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class _Ty1, |
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class _Ty2> |
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typename _Pair_data<_Idx, std::pair<_Ty1, _Ty2> >::_Type |
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get(std::pair<_Ty1, _Ty2>& _Pr) |
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{ // return element at _Idx in pair _Pr |
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return (_Pair_data<_Idx, std::pair<_Ty1, _Ty2> >::_Val(_Pr)); |
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} |
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template<int _Idx, |
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class _Ty1, |
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class _Ty2> |
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typename _Pair_data<_Idx, std::pair<_Ty1, _Ty2> >::_CType |
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get(const std::pair<_Ty1, _Ty2>& _Pr) |
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{ // return element at _Idx in pair _Pr |
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return (_Pair_data<_Idx, std::pair<_Ty1, _Ty2> >::_Val(_Pr)); |
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} |
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} // namespace tr1 |
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_STD_END |
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#endif /* _HAS_TR1 */ |
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#ifdef _MSC_VER |
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#pragma warning(pop) |
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#pragma pack(pop) |
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#endif /* _MSC_VER */ |
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#endif /* RC_INVOKED */ |
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#endif /* _UTILITY_ */ |
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/* |
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* This file is derived from software bearing the following |
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* restrictions: |
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* |
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* Copyright (c) 1994 |
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* Hewlett-Packard Company |
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* |
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* Permission to use, copy, modify, distribute and sell this |
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* software and its documentation for any purpose is hereby |
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* granted without fee, provided that the above copyright notice |
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* appear in all copies and that both that copyright notice and |
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* this permission notice appear in supporting documentation. |
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* Hewlett-Packard Company makes no representations about the |
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* suitability of this software for any purpose. It is provided |
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* "as is" without express or implied warranty. |
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*/ |
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/* |
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* Copyright (c) 1992-2008 by P.J. Plauger. ALL RIGHTS RESERVED. |
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* Consult your license regarding permissions and restrictions. |
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V5.05:0009 */ |
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