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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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#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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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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// 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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#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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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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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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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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// 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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typedef _STD _Range_checked_iterator_tag _Checked_iterator_category; |
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typedef _Iter _Inner_type; |
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typedef _Iter _Checked_iterator_base_type; |
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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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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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// use default copy constructor and copy assignement |
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checked_iterator() |
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: _Mycont(NULL) |
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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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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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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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_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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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; |
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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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template <class Iter2> |
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bool operator<=(const checked_iterator<_Cont, Iter2>& _Right) const |
444 |
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{ |
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return !(_Right < *this); |
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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); |
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} |
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reference operator*() const |
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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; |
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} |
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pointer operator->() const |
462 |
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{ |
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return (&**this); |
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} |
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_Myt& operator++() |
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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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++_Current; |
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return *this; |
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} |
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_Myt operator++(int) |
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{ |
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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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_Myt& operator--() |
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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->begin()); |
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--_Current; |
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return *this; |
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} |
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_Myt operator--(int) |
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{ |
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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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|
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// random access iterators methods |
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|
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_Myt& operator+=(difference_type _Off) |
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{ |
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_SCL_SECURE_ALWAYS_VALIDATE(_Mycont != NULL); |
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_SCL_SECURE_ALWAYS_VALIDATE_RANGE((_Mycont->end() - _Current) >= _Off && (_Mycont->begin() - _Current) <= _Off); |
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_Current += _Off; |
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return *this; |
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} |
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|
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_Myt operator+(difference_type _Off) const |
507 |
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{ |
508 |
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_Myt _Tmp = *this; |
509 |
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return (_Tmp += _Off); |
510 |
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} |
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|
|
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 |
|
|
|
|
|