Chris@16: //  (C) Copyright John Maddock 2005.
Chris@16: //  Use, modification and distribution are subject to the
Chris@16: //  Boost Software License, Version 1.0. (See accompanying file
Chris@16: //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_TR1_FUNCTOR_IT_HPP_INCLUDED
Chris@16: #  define BOOST_TR1_FUNCTOR_IT_HPP_INCLUDED
Chris@16: 
Chris@16: # include <boost/iterator/iterator_facade.hpp>
Chris@16: 
Chris@16: namespace boost{ namespace tr1_details{
Chris@16: 
Chris@16: template <class Func, class R>
Chris@16: struct functor2iterator : boost::iterator_facade<functor2iterator<Func,R>, const R, std::input_iterator_tag>
Chris@16: {
Chris@16:    functor2iterator() : m_func(0){}
Chris@16:    functor2iterator(Func& f)
Chris@16:       : m_func(&f)
Chris@16:    {
Chris@16:       m_val = (*m_func)();
Chris@16:    }
Chris@16:    const R& dereference()const
Chris@16:    { return m_val; }
Chris@16:    void increment(){ m_val = (*m_func)(); }
Chris@16:    bool equal(const functor2iterator&)const
Chris@16:    { return false; }
Chris@16: private:
Chris@16:    Func* m_func;
Chris@16:    R m_val;
Chris@16: };
Chris@16: 
Chris@16: } }
Chris@16: 
Chris@16: #endif