mirror of
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db95c7fe31
Keeps the boost libraries up to date. This also silences informational messages that get spammed throughout the build, such as: "Info: Boost.Config is older than your compiler version - probably nothing bad will happen - but you may wish to look for an update Boost version. Define BOOST_CONFIG_SUPPRESS_OUTDATED_MESSAGE to suppress this message." Which makes the compilation process a lot less noisy on Windows. It's now much easier to actually spot warnings that occur.
110 lines
3.7 KiB
C++
110 lines
3.7 KiB
C++
/*-----------------------------------------------------------------------------+
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Copyright (c) 2009-2009: Joachim Faulhaber
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+------------------------------------------------------------------------------+
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENCE.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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+-----------------------------------------------------------------------------*/
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#ifndef BOOST_ICL_ITERATOR_HPP_JOFA_091003
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#define BOOST_ICL_ITERATOR_HPP_JOFA_091003
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#include <iterator>
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#include <boost/config/warning_disable.hpp>
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namespace boost{namespace icl
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{
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/** \brief Performes an addition using a container's memberfunction add, when operator= is called. */
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template<class ContainerT> class add_iterator
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{
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public:
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/// The container's type.
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typedef ContainerT container_type;
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typedef std::output_iterator_tag iterator_category;
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typedef void value_type;
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typedef void difference_type;
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typedef void pointer;
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typedef void reference;
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/** An add_iterator is constructed with a container and a position
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that has to be maintained. */
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add_iterator(ContainerT& cont, typename ContainerT::iterator iter)
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: _cont(&cont), _iter(iter) {}
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/** This assignment operator adds the \c value before the current position.
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It maintains it's position by incrementing after addition. */
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add_iterator& operator=(typename ContainerT::const_reference value)
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{
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_iter = icl::add(*_cont, _iter, value);
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if(_iter != _cont->end())
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++_iter;
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return *this;
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}
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add_iterator& operator*() { return *this; }
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add_iterator& operator++() { return *this; }
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add_iterator& operator++(int){ return *this; }
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private:
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ContainerT* _cont;
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typename ContainerT::iterator _iter;
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};
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/** Function adder creates and initializes an add_iterator */
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template<class ContainerT, typename IteratorT>
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inline add_iterator<ContainerT> adder(ContainerT& cont, IteratorT iter_)
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{
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return add_iterator<ContainerT>(cont, typename ContainerT::iterator(iter_));
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}
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/** \brief Performes an insertion using a container's memberfunction add, when operator= is called. */
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template<class ContainerT> class insert_iterator
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{
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public:
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/// The container's type.
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typedef ContainerT container_type;
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typedef std::output_iterator_tag iterator_category;
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typedef void value_type;
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typedef void difference_type;
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typedef void pointer;
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typedef void reference;
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/** An insert_iterator is constructed with a container and a position
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that has to be maintained. */
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insert_iterator(ContainerT& cont, typename ContainerT::iterator iter)
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: _cont(&cont), _iter(iter) {}
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/** This assignment operator adds the \c value before the current position.
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It maintains it's position by incrementing after addition. */
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insert_iterator& operator=(typename ContainerT::const_reference value)
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{
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_iter = _cont->insert(_iter, value);
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if(_iter != _cont->end())
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++_iter;
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return *this;
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}
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insert_iterator& operator*() { return *this; }
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insert_iterator& operator++() { return *this; }
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insert_iterator& operator++(int){ return *this; }
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private:
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ContainerT* _cont;
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typename ContainerT::iterator _iter;
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};
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/** Function inserter creates and initializes an insert_iterator */
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template<class ContainerT, typename IteratorT>
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inline insert_iterator<ContainerT> inserter(ContainerT& cont, IteratorT iter_)
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{
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return insert_iterator<ContainerT>(cont, typename ContainerT::iterator(iter_));
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}
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}} // namespace icl boost
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#endif // BOOST_ICL_ITERATOR_HPP_JOFA_091003
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