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Diffstat (limited to '3rdParty/Boost/src/boost/range/has_range_iterator.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/range/has_range_iterator.hpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/range/has_range_iterator.hpp b/3rdParty/Boost/src/boost/range/has_range_iterator.hpp new file mode 100644 index 0000000..9eb58b3 --- /dev/null +++ b/3rdParty/Boost/src/boost/range/has_range_iterator.hpp @@ -0,0 +1,83 @@ +// 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/ +// +// Acknowledgments: +// Ticket #8341: Arno Schoedl - improved handling of has_range_iterator upon +// use-cases where T was const. +#ifndef BOOST_RANGE_HAS_ITERATOR_HPP_INCLUDED +#define BOOST_RANGE_HAS_ITERATOR_HPP_INCLUDED + +#include <boost/mpl/bool.hpp> +#include <boost/mpl/eval_if.hpp> +#include <boost/mpl/has_xxx.hpp> +#include <boost/range/iterator.hpp> +#include <boost/type_traits/remove_reference.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 ::boost::enable_if< + BOOST_DEDUCED_TYPENAME mpl::eval_if<is_const<T>, + has_type<range_const_iterator< + BOOST_DEDUCED_TYPENAME remove_const<T>::type> >, + has_type<range_mutable_iterator<T> > + >::type + >::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 ::boost::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< + BOOST_DEDUCED_TYPENAME remove_reference<T>::type> + {}; + + template<class T> + struct has_range_const_iterator + : range_detail::has_range_const_iterator_impl< + BOOST_DEDUCED_TYPENAME remove_reference<T>::type> + {}; +} // namespace boost + +#endif // include guard + |