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62 lines
1.6 KiB
62 lines
1.6 KiB
// Boost.Range library |
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// |
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// Copyright Neil Groves 2010. Use, modification and |
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// distribution is subject to the Boost Software License, Version |
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// For more information, see http://www.boost.org/libs/range/ |
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// |
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#ifndef BOOST_RANGE_HAS_ITERATOR_HPP_INCLUDED |
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#define BOOST_RANGE_HAS_ITERATOR_HPP_INCLUDED |
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#include <boost/mpl/bool.hpp> |
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#include <boost/mpl/has_xxx.hpp> |
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#include <boost/range/iterator.hpp> |
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#include <boost/utility.hpp> |
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namespace boost |
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{ |
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namespace range_detail |
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{ |
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BOOST_MPL_HAS_XXX_TRAIT_DEF(type) |
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template<class T, class Enabler = void> |
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struct has_range_iterator_impl |
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: boost::mpl::false_ |
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{ |
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}; |
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template<class T> |
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struct has_range_iterator_impl<T, BOOST_DEDUCED_TYPENAME enable_if< has_type< range_mutable_iterator<T> > >::type> |
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: boost::mpl::true_ |
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{ |
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}; |
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template<class T, class Enabler = void> |
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struct has_range_const_iterator_impl |
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: boost::mpl::false_ |
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{ |
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}; |
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template<class T> |
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struct has_range_const_iterator_impl<T, BOOST_DEDUCED_TYPENAME enable_if< has_type< range_const_iterator<T> > >::type> |
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: boost::mpl::true_ |
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{ |
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}; |
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} // namespace range_detail |
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template<class T> |
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struct has_range_iterator |
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: range_detail::has_range_iterator_impl<T> |
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{}; |
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template<class T> |
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struct has_range_const_iterator |
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: range_detail::has_range_const_iterator_impl<T> |
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{}; |
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} // namespace boost |
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#endif // include guard |
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