// Boost.Range library | |
// | |
// Copyright Neil Groves 2010. Use, modification and | |
// distribution is 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) | |
// | |
// For more information, see http://www.boost.org/libs/range/ | |
// | |
#ifndef BOOST_RANGE_HAS_ITERATOR_HPP_INCLUDED | |
#define BOOST_RANGE_HAS_ITERATOR_HPP_INCLUDED | |
#include <boost/mpl/bool.hpp> | |
#include <boost/mpl/has_xxx.hpp> | |
#include <boost/range/iterator.hpp> | |
#include <boost/utility.hpp> | |
namespace boost | |
{ | |
namespace range_detail | |
{ | |
BOOST_MPL_HAS_XXX_TRAIT_DEF(type); | |
template<class T, class Enabler = void> | |
struct has_range_iterator_impl | |
: boost::mpl::false_ | |
{ | |
}; | |
template<class T> | |
struct has_range_iterator_impl<T, BOOST_DEDUCED_TYPENAME enable_if< has_type< range_mutable_iterator<T> > >::type> | |
: boost::mpl::true_ | |
{ | |
}; | |
template<class T, class Enabler = void> | |
struct has_range_const_iterator_impl | |
: boost::mpl::false_ | |
{ | |
}; | |
template<class T> | |
struct has_range_const_iterator_impl<T, BOOST_DEDUCED_TYPENAME enable_if< has_type< range_const_iterator<T> > >::type> | |
: boost::mpl::true_ | |
{ | |
}; | |
} // namespace range_detail | |
template<class T> | |
struct has_range_iterator | |
: range_detail::has_range_iterator_impl<T> | |
{}; | |
template<class T> | |
struct has_range_const_iterator | |
: range_detail::has_range_const_iterator_impl<T> | |
{}; | |
} // namespace boost | |
#endif // include guard | |