63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
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// 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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