/*============================================================================= | |
Copyright (c) 2001-2006 Joel de Guzman | |
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(FUSION_SINGLE_VIEW_05052005_0335) | |
#define FUSION_SINGLE_VIEW_05052005_0335 | |
#include <boost/fusion/support/detail/access.hpp> | |
#include <boost/fusion/support/detail/as_fusion_element.hpp> | |
#include <boost/fusion/support/sequence_base.hpp> | |
#include <boost/fusion/view/single_view/single_view_iterator.hpp> | |
#include <boost/fusion/view/single_view/detail/begin_impl.hpp> | |
#include <boost/fusion/view/single_view/detail/end_impl.hpp> | |
#include <boost/mpl/bool.hpp> | |
#include <boost/mpl/int.hpp> | |
#include <boost/config.hpp> | |
#if defined (BOOST_MSVC) | |
# pragma warning(push) | |
# pragma warning (disable: 4512) // assignment operator could not be generated. | |
#endif | |
namespace boost { namespace fusion | |
{ | |
struct single_view_tag; | |
struct forward_traversal_tag; | |
struct fusion_sequence_tag; | |
template <typename T> | |
struct single_view : sequence_base<single_view<T> > | |
{ | |
typedef single_view_tag fusion_tag; | |
typedef fusion_sequence_tag tag; // this gets picked up by MPL | |
typedef forward_traversal_tag category; | |
typedef mpl::true_ is_view; | |
typedef mpl::int_<1> size; | |
typedef T value_type; | |
single_view() | |
: val() {} | |
explicit single_view(typename detail::call_param<T>::type in_val) | |
: val(in_val) {} | |
value_type val; | |
}; | |
template <typename T> | |
inline single_view<typename detail::as_fusion_element<T>::type> | |
make_single_view(T const& v) | |
{ | |
return single_view<typename detail::as_fusion_element<T>::type>(v); | |
} | |
}} | |
#if defined (BOOST_MSVC) | |
# pragma warning(pop) | |
#endif | |
#endif | |