diff options
Diffstat (limited to 'contrib/src/boost/range/has_range_iterator.hpp')
| -rw-r--r-- | contrib/src/boost/range/has_range_iterator.hpp | 166 |
1 files changed, 83 insertions, 83 deletions
diff --git a/contrib/src/boost/range/has_range_iterator.hpp b/contrib/src/boost/range/has_range_iterator.hpp index 7e1976f..9eb58b3 100644 --- a/contrib/src/boost/range/has_range_iterator.hpp +++ b/contrib/src/boost/range/has_range_iterator.hpp @@ -1,83 +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
-
+// 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 + |