35 lines
883 B
C++
35 lines
883 B
C++
// (C) Copyright John Maddock 2005.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_TR1_FUNCTOR_IT_HPP_INCLUDED
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# define BOOST_TR1_FUNCTOR_IT_HPP_INCLUDED
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# include <boost/iterator/iterator_facade.hpp>
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namespace boost{ namespace tr1_details{
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template <class Func, class R>
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struct functor2iterator : boost::iterator_facade<functor2iterator<Func,R>, const R, std::input_iterator_tag>
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{
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functor2iterator() : m_func(0){}
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functor2iterator(Func& f)
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: m_func(&f)
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{
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m_val = (*m_func)();
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}
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const R& dereference()const
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{ return m_val; }
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void increment(){ m_val = (*m_func)(); }
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bool equal(const functor2iterator&)const
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{ return false; }
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private:
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Func* m_func;
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R m_val;
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};
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} }
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#endif
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