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