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- // 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/enable_if.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
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