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// iterator standard header |
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#pragma once |
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#ifndef _ITERATOR_ |
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#define _ITERATOR_ |
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#ifndef RC_INVOKED |
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#include <xutility> |
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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 CLASS back_insert_iterator |
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template<class _Container> |
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class back_insert_iterator |
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: public _Outit |
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{ // wrap pushes to back of container as output iterator |
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public: |
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typedef _Container container_type; |
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typedef typename _Container::reference reference; |
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typedef _Range_checked_iterator_tag _Checked_iterator_category; |
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explicit back_insert_iterator(_Container& _Cont) |
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: container(&_Cont) |
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{ // construct with container |
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} |
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back_insert_iterator<_Container>& operator=( |
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typename _Container::const_reference _Val) |
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{ // push value into container |
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container->push_back(_Val); |
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return (*this); |
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} |
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back_insert_iterator<_Container>& operator*() |
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{ // pretend to return designated value |
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return (*this); |
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} |
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back_insert_iterator<_Container>& operator++() |
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{ // pretend to preincrement |
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return (*this); |
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} |
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back_insert_iterator<_Container> operator++(int) |
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{ // pretend to postincrement |
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return (*this); |
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} |
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protected: |
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_Container *container; // pointer to container |
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}; |
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// TEMPLATE FUNCTION back_inserter |
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template<class _Container> inline |
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back_insert_iterator<_Container> back_inserter(_Container& _Cont) |
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{ // return a back_insert_iterator |
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return (std::back_insert_iterator<_Container>(_Cont)); |
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} |
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// TEMPLATE CLASS front_insert_iterator |
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template<class _Container> |
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class front_insert_iterator |
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: public _Outit |
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{ // wrap pushes to front of container as output iterator |
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public: |
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typedef _Container container_type; |
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typedef typename _Container::reference reference; |
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typedef _Range_checked_iterator_tag _Checked_iterator_category; |
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explicit front_insert_iterator(_Container& _Cont) |
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: container(&_Cont) |
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{ // construct with container |
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} |
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front_insert_iterator<_Container>& operator=( |
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typename _Container::const_reference _Val) |
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{ // push value into container |
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container->push_front(_Val); |
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return (*this); |
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} |
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front_insert_iterator<_Container>& operator*() |
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{ // pretend to return designated value |
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return (*this); |
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} |
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front_insert_iterator<_Container>& operator++() |
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{ // pretend to preincrement |
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return (*this); |
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} |
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front_insert_iterator<_Container> operator++(int) |
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{ // pretend to postincrement |
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return (*this); |
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} |
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protected: |
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_Container *container; // pointer to container |
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}; |
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// TEMPLATE FUNCTION front_inserter |
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template<class _Container> inline |
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front_insert_iterator<_Container> front_inserter(_Container& _Cont) |
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{ // return front_insert_iterator |
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return (std::front_insert_iterator<_Container>(_Cont)); |
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} |
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// TEMPLATE CLASS insert_iterator |
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template<class _Container> |
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class insert_iterator |
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: public _Outit |
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{ // wrap inserts into container as output iterator |
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public: |
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typedef _Container container_type; |
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typedef typename _Container::reference reference; |
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typedef _Range_checked_iterator_tag _Checked_iterator_category; |
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insert_iterator(_Container& _Cont, typename _Container::iterator _Where) |
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: container(&_Cont), iter(_Where) |
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{ // construct with container and iterator |
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} |
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insert_iterator<_Container>& operator=( |
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typename _Container::const_reference _Val) |
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{ // insert into container and increment stored iterator |
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iter = container->insert(iter, _Val); |
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++iter; |
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return (*this); |
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} |
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insert_iterator<_Container>& operator*() |
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{ // pretend to return designated value |
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return (*this); |
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} |
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insert_iterator<_Container>& operator++() |
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{ // pretend to preincrement |
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return (*this); |
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} |
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insert_iterator<_Container>& operator++(int) |
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{ // pretend to postincrement |
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return (*this); |
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} |
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protected: |
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_Container *container; // pointer to container |
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typename _Container::iterator iter; // iterator into container |
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}; |
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// TEMPLATE FUNCTION inserter |
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template<class _Container, |
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class _Iter> inline |
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insert_iterator<_Container> inserter(_Container& _Cont, _Iter _Where) |
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{ // return insert_iterator |
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return (std::insert_iterator<_Container>(_Cont, _Where)); |
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} |
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// TEMPLATE CLASS istream_iterator |
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template<class _Ty, |
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class _Elem = char, |
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class _Traits = char_traits<_Elem>, |
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class _Diff = ptrdiff_t> |
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class istream_iterator |
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: public iterator<input_iterator_tag, _Ty, _Diff, |
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const _Ty *, const _Ty&> |
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{ // wrap _Ty extracts from input stream as input iterator |
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typedef istream_iterator<_Ty, _Elem, _Traits, _Diff> _Myt; |
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public: |
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typedef _Elem char_type; |
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typedef _Traits traits_type; |
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typedef basic_istream<_Elem, _Traits> istream_type; |
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|
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#if _SECURE_SCL |
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typedef _Range_checked_iterator_tag _Checked_iterator_category; |
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#endif |
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istream_iterator() |
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: _Myistr(0) |
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{ // construct singular iterator |
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} |
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istream_iterator(istream_type& _Istr) |
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: _Myistr(&_Istr) |
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{ // construct with input stream |
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_Getval(); |
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} |
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const _Ty& operator*() const |
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{ // return designated value |
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#if _HAS_ITERATOR_DEBUGGING |
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if (_Myistr == 0) |
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{ |
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_DEBUG_ERROR("istream_iterator is not dereferencable"); |
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_SCL_SECURE_OUT_OF_RANGE; |
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} |
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#else |
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_SCL_SECURE_VALIDATE_RANGE(_Myistr != 0); |
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#endif /* _HAS_ITERATOR_DEBUGGING */ |
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return (_Myval); |
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} |
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const _Ty *operator->() const |
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{ // return pointer to class object |
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return (&**this); |
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} |
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_Myt& operator++() |
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{ // preincrement |
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#if _HAS_ITERATOR_DEBUGGING |
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if (_Myistr == 0) |
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{ |
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_DEBUG_ERROR("istream_iterator is not incrementable"); |
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_SCL_SECURE_OUT_OF_RANGE; |
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} |
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#else |
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_SCL_SECURE_VALIDATE_RANGE(_Myistr != 0); |
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#endif /* _HAS_ITERATOR_DEBUGGING */ |
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_Getval(); |
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return (*this); |
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} |
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_Myt operator++(int) |
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{ // postincrement |
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_Myt _Tmp = *this; |
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++*this; |
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return (_Tmp); |
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} |
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bool _Equal(const _Myt& _Right) const |
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{ // test for iterator equality |
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return (_Myistr == _Right._Myistr); |
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} |
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protected: |
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void _Getval() |
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{ // get a _Ty value if possible |
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if (_Myistr != 0 && !(*_Myistr >> _Myval)) |
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_Myistr = 0; |
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} |
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static void _Xran() |
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{ // report an out_of_range error |
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_THROW(out_of_range, "invalid istream_iterator"); |
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} |
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istream_type *_Myistr; // pointer to input stream |
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_Ty _Myval; // lookahead value (valid if _Myistr is not null) |
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}; |
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// istream_iterator TEMPLATE OPERATORS |
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template<class _Ty, |
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class _Elem, |
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class _Traits, |
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class _Diff> inline |
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bool operator==( |
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const istream_iterator<_Ty, _Elem, _Traits, _Diff>& _Left, |
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const istream_iterator<_Ty, _Elem, _Traits, _Diff>& _Right) |
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{ // test for istream_iterator equality |
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return (_Left._Equal(_Right)); |
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} |
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|
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template<class _Ty, |
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class _Elem, |
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class _Traits, |
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class _Diff> inline |
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bool operator!=( |
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const istream_iterator<_Ty, _Elem, _Traits, _Diff>& _Left, |
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const istream_iterator<_Ty, _Elem, _Traits, _Diff>& _Right) |
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{ // test for istream_iterator inequality |
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return (!(_Left == _Right)); |
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} |
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|
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// TEMPLATE CLASS ostream_iterator |
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template<class _Ty, |
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class _Elem = char, |
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class _Traits = char_traits<_Elem> > |
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class ostream_iterator |
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: public _Outit |
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{ // wrap _Ty inserts to output stream as output iterator |
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public: |
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typedef _Elem char_type; |
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typedef _Traits traits_type; |
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typedef basic_ostream<_Elem, _Traits> ostream_type; |
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|
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#if _SECURE_SCL |
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typedef _Range_checked_iterator_tag _Checked_iterator_category; |
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#endif |
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ostream_iterator(ostream_type& _Ostr, |
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const _Elem *_Delim = 0) |
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: _Myostr(&_Ostr), _Mydelim(_Delim) |
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{ // construct from output stream and delimiter |
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} |
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ostream_iterator<_Ty, _Elem, _Traits>& operator=(const _Ty& _Val) |
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{ // insert value into output stream, followed by delimiter |
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*_Myostr << _Val; |
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if (_Mydelim != 0) |
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*_Myostr << _Mydelim; |
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|
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#if _HAS_ITERATOR_DEBUGGING |
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if (!*_Myostr) |
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{ |
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_DEBUG_ERROR("ostream_iterator is not dereferencable"); |
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_SCL_SECURE_OUT_OF_RANGE; |
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} |
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#else |
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_SCL_SECURE_VALIDATE_RANGE(*_Myostr != NULL); |
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#endif /* _HAS_ITERATOR_DEBUGGING */ |
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return (*this); |
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} |
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ostream_iterator<_Ty, _Elem, _Traits>& operator*() |
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{ // pretend to return designated value |
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return (*this); |
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} |
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|
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ostream_iterator<_Ty, _Elem, _Traits>& operator++() |
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{ // pretend to preincrement |
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return (*this); |
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} |
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|
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ostream_iterator<_Ty, _Elem, _Traits> operator++(int) |
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{ // pretend to postincrement |
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return (*this); |
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} |
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|
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protected: |
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static void _Xran() |
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{ // report an out_of_range error |
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_THROW(out_of_range, "invalid ostream_iterator"); |
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} |
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const _Elem *_Mydelim; // pointer to delimiter string (NB: not freed) |
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ostream_type *_Myostr; // pointer to output stream |
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}; |
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_STD_END |
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_STDEXT_BEGIN |
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|
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// checked_iterator |
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template <class _Cont, class _Iter = typename _Cont::iterator> |
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class checked_iterator |
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: public _STD iterator< |
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typename _STD iterator_traits<_Iter>::iterator_category, |
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typename _STD iterator_traits<_Iter>::value_type, |
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typename _STD iterator_traits<_Iter>::difference_type, |
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typename _STD iterator_traits<_Iter>::pointer, |
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typename _STD iterator_traits<_Iter>::reference> |
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{ |
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friend class checked_iterator; |
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public: |
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typedef checked_iterator<_Cont, _Iter> _Myt; |
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typedef typename _STD iterator_traits<_Iter>::difference_type difference_type; |
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typedef typename _STD iterator_traits<_Iter>::pointer pointer; |
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typedef typename _STD iterator_traits<_Iter>::reference reference; |
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|
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typedef _STD _Range_checked_iterator_tag _Checked_iterator_category; |
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typedef _Iter _Inner_type; |
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|
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typedef _Iter _Checked_iterator_base_type; |
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|
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_Checked_iterator_base_type _Checked_iterator_base() const |
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{ |
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return _Current; |
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} |
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|
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void _Checked_iterator_assign_from_base(_Checked_iterator_base_type _Base) |
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{ |
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_Current = _Base; |
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} |
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|
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// use default copy constructor and copy assignement |
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|
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checked_iterator() |
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: _Mycont(NULL) |
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{ |
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} |
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|
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checked_iterator(_Cont& _C, _Iter _Ptr) |
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: _Mycont(&_C), _Current(_Ptr) |
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{ |
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} |
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|
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checked_iterator(const _Myt &_Right) |
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: _Mycont(_Right._Mycont), _Current(_Right._Current) |
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{ |
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} |
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|
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template <class Iter2> |
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checked_iterator(const checked_iterator<_Cont, Iter2> &_Right) |
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: _Mycont(_Right._Mycont), _Current(_Right._Current) |
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{ |
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} |
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|
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_Iter base() const |
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{ |
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_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
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return _Current; |
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} |
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|
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template <class Iter2> |
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bool operator==(const checked_iterator<_Cont, Iter2>& _Right) const |
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{ |
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_SCL_SECURE_ALWAYS_VALIDATE(_Mycont == _Right._Mycont); |
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return _Current == _Right._Current; |
| 420 |
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} |
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|
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template <class Iter2> |
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bool operator!=(const checked_iterator<_Cont, Iter2>& _Right) const |
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{ |
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_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
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return !(*this == _Right); |
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} |
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{ |
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return _Right < *this; |
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} |
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|
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template <class Iter2> |
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bool operator<=(const checked_iterator<_Cont, Iter2>& _Right) const |
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{ |
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return !(_Right < *this); |
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} |
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|
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template <class Iter2> |
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bool operator>=(const checked_iterator<_Cont, Iter2>& _Right) const |
| 450 |
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{ |
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return !(*this < _Right); |
| 452 |
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} |
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|
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reference operator*() const |
| 455 |
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{ |
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_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
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_SCL_SECURE_ALWAYS_VALIDATE_RANGE(_Current != _Mycont->end()); |
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return *_Current; |
| 459 |
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} |
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|
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pointer operator->() const |
| 462 |
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{ |
| 463 |
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return (&**this); |
| 464 |
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} |
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|
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_Myt& operator++() |
| 467 |
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{ |
| 468 |
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_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
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_SCL_SECURE_ALWAYS_VALIDATE_RANGE(_Current != _Mycont->end()); |
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++_Current; |
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return *this; |
| 472 |
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} |
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|
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_Myt operator++(int) |
| 475 |
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{ |
| 476 |
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_Myt _Tmp = *this; |
| 477 |
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++*this; |
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return _Tmp; |
| 479 |
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} |
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|
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_Myt& operator--() |
| 482 |
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{ |
| 483 |
|
_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
| 484 |
|
_SCL_SECURE_ALWAYS_VALIDATE_RANGE(_Current != _Mycont->begin()); |
| 485 |
|
--_Current; |
| 486 |
|
return *this; |
| 487 |
|
} |
| 488 |
|
|
| 489 |
|
_Myt operator--(int) |
| 490 |
|
{ |
| 491 |
|
_Myt _Tmp = *this; |
| 492 |
|
--*this; |
| 493 |
|
return _Tmp; |
| 494 |
|
} |
| 495 |
|
|
| 496 |
|
// random access iterators methods |
| 497 |
|
|
| 498 |
|
_Myt& operator+=(difference_type _Off) |
| 499 |
|
{ |
| 500 |
|
_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
| 501 |
|
_SCL_SECURE_ALWAYS_VALIDATE_RANGE((_Mycont->end() - _Current) >= _Off && (_Mycont->begin() - _Current) <= _Off); |
| 502 |
|
_Current += _Off; |
| 503 |
|
return *this; |
| 504 |
|
} |
| 505 |
|
|
| 506 |
|
_Myt operator+(difference_type _Off) const |
| 507 |
|
{ |
| 508 |
|
_Myt _Tmp = *this; |
| 509 |
|
return (_Tmp += _Off); |
| 510 |
|
} |
| 511 |
|
|
| 512 |
|
_Myt& operator-=(difference_type _Off) |
| 513 |
|
{ |
| 514 |
|
return (*this += -_Off); |
| 515 |
|
} |
| 516 |
|
|
| 517 |
|
_Myt operator-(difference_type _Off) const |
| 518 |
|
{ |
| 519 |
|
_Myt _Tmp = *this; |
| 520 |
|
return (_Tmp -= _Off); |
| 521 |
|
} |
| 522 |
|
|
| 523 |
|
difference_type operator-(const _Myt& _Right) const |
| 524 |
|
{ |
| 525 |
|
_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL && _Mycont == _Right._Mycont); |
| 526 |
|
return _Current - _Right._Current; |
| 527 |
|
} |
| 528 |
|
|
| 529 |
|
reference operator[](difference_type _Off) const |
| 530 |
|
{ |
| 531 |
|
_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
| 532 |
|
_SCL_SECURE_ALWAYS_VALIDATE_RANGE((_Mycont->end() - _Current) > _Off && (_Mycont->begin() - _Current) <= _Off); |
| 533 |
|
return _Current[_Off]; |
| 534 |
|
} |
| 535 |
|
|
| 536 |
|
protected: |
| 537 |
|
void _Xran() const |
| 538 |
|
{ // report an out_of_range error |
| 539 |
|
_THROW(_STD out_of_range, "invalid checked_iterator<T> subscript"); |
| 540 |
|
} |
| 541 |
|
|
| 542 |
|
void _Xinvarg() const |
| 543 |
|
{ // report an invalid_argument error |
| 544 |
|
_THROW(_STD invalid_argument, "invalid checked_iterator<T> argument"); |
| 545 |
|
} |
| 546 |
|
|
| 547 |
|
_Cont *_Mycont; // the container of the iterator |
| 548 |
|
_Iter _Current; // the wrapped iterator |
| 549 |
|
}; |
| 550 |
|
|
| 551 |
|
_STDEXT_END |
| 552 |
|
|
| 553 |
|
#ifdef _MSC_VER |
| 554 |
|
#pragma warning(pop) |
| 555 |
|
#pragma pack(pop) |
| 556 |
|
#endif /* _MSC_VER */ |
| 557 |
|
|
| 558 |
|
#endif /* RC_INVOKED */ |
| 559 |
|
#endif /* _ITERATOR_ */ |
| 560 |
|
|
| 561 |
|
/* |
| 562 |
|
* Copyright (c) 1992-2007 by P.J. Plauger. ALL RIGHTS RESERVED. |
| 563 |
|
* Consult your license regarding permissions and restrictions. |
| 564 |
|
*/ |
| 565 |
|
|
| 566 |
|
/* |
| 567 |
|
* This file is derived from software bearing the following |
| 568 |
|
* restrictions: |
| 569 |
|
* |
| 570 |
|
* Copyright (c) 1994 |
| 571 |
|
* Hewlett-Packard Company |
| 572 |
|
* |
| 573 |
|
* Permission to use, copy, modify, distribute and sell this |
| 574 |
|
* software and its documentation for any purpose is hereby |
| 575 |
|
* granted without fee, provided that the above copyright notice |
| 576 |
|
* appear in all copies and that both that copyright notice and |
| 577 |
|
* this permission notice appear in supporting documentation. |
| 578 |
|
* Hewlett-Packard Company makes no representations about the |
| 579 |
|
* suitability of this software for any purpose. It is provided |
| 580 |
|
* "as is" without express or implied warranty. |
| 581 |
|
V5.03:0009 */ |
| 582 |
|
|
|
|
|