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Diffstat (limited to 'boost/fusion/container/deque/front_extended_deque.hpp')
-rw-r--r-- | boost/fusion/container/deque/front_extended_deque.hpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/boost/fusion/container/deque/front_extended_deque.hpp b/boost/fusion/container/deque/front_extended_deque.hpp new file mode 100644 index 0000000000..7a7f9cee29 --- /dev/null +++ b/boost/fusion/container/deque/front_extended_deque.hpp @@ -0,0 +1,40 @@ +/*============================================================================= + Copyright (c) 2005-2011 Joel de Guzman + Copyright (c) 2005-2006 Dan Marsden + + Distributed under 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) +==============================================================================*/ +#if !defined(BOOST_FUSION_FRONT_EXTENDED_DEQUE_26112006_2209) +#define BOOST_FUSION_FRONT_EXTENDED_DEQUE_26112006_2209 + +#include <boost/fusion/container/deque/detail/keyed_element.hpp> +#include <boost/mpl/int.hpp> +#include <boost/mpl/minus.hpp> +#include <boost/mpl/plus.hpp> +#include <boost/fusion/sequence/intrinsic/size.hpp> + +#include <boost/type_traits/add_const.hpp> +#include <boost/type_traits/add_reference.hpp> + +#include <boost/fusion/support/sequence_base.hpp> + +namespace boost { namespace fusion +{ + template<typename Deque, typename T> + struct front_extended_deque + : detail::keyed_element<typename Deque::next_down, T, Deque>, + sequence_base<front_extended_deque<Deque, T> > + { + typedef detail::keyed_element<typename Deque::next_down, T, Deque> base; + typedef mpl::int_<mpl::minus<typename Deque::next_down, mpl::int_<1> >::value> next_down; + typedef typename Deque::next_up next_up; + typedef mpl::plus<typename result_of::size<Deque>::type, mpl::int_<1> > size; + + front_extended_deque(Deque const& deque, typename add_reference<typename add_const<T>::type>::type t) + : base(t, deque) + {} + }; +}} + +#endif |