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Diffstat (limited to 'boost/fusion/view/flatten_view/flatten_view.hpp')
-rw-r--r--boost/fusion/view/flatten_view/flatten_view.hpp26
1 files changed, 16 insertions, 10 deletions
diff --git a/boost/fusion/view/flatten_view/flatten_view.hpp b/boost/fusion/view/flatten_view/flatten_view.hpp
index aa47240771..8e40158d1c 100644
--- a/boost/fusion/view/flatten_view/flatten_view.hpp
+++ b/boost/fusion/view/flatten_view/flatten_view.hpp
@@ -8,6 +8,7 @@
#define BOOST_FUSION_FLATTEN_VIEW_HPP_INCLUDED
+#include <boost/fusion/support/config.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/single_view.hpp>
#include <boost/fusion/support/detail/access.hpp>
@@ -23,7 +24,7 @@ namespace boost { namespace fusion
{
struct forward_traversal_tag;
struct flatten_view_tag;
-
+
template <typename Sequence>
struct flatten_view
: sequence_base<flatten_view<Sequence> >
@@ -32,18 +33,21 @@ namespace boost { namespace fusion
typedef fusion_sequence_tag tag; // this gets picked up by MPL
typedef mpl::true_ is_view;
typedef forward_traversal_tag category;
-
+
typedef Sequence sequence_type;
typedef typename result_of::begin<Sequence>::type first_type;
typedef typename result_of::end<Sequence>::type last_type;
-
+
+ BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
explicit flatten_view(Sequence& seq)
: seq(seq)
{}
-
+
+ BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
first_type first() const { return fusion::begin(seq); }
+ BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
last_type last() const { return fusion::end(seq); }
-
+
typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq;
};
}}
@@ -57,19 +61,20 @@ namespace boost { namespace fusion { namespace extension
struct apply
{
typedef typename Sequence::first_type first_type;
-
+
typedef typename
result_of::begin<
mpl::single_view<
typename Sequence::sequence_type> >::type
root_iterator;
-
+
typedef
detail::seek_descent<root_iterator, first_type>
seek_descent;
-
+
typedef typename seek_descent::type type;
+ BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static inline
type call(Sequence& seq)
{
@@ -77,7 +82,7 @@ namespace boost { namespace fusion { namespace extension
}
};
};
-
+
template<>
struct end_impl<flatten_view_tag>
{
@@ -85,13 +90,14 @@ namespace boost { namespace fusion { namespace extension
struct apply
{
typedef typename Sequence::last_type last_type;
-
+
typedef typename
result_of::end<
mpl::single_view<
typename Sequence::sequence_type> >::type
type;
+ BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static inline
type call(Sequence&)
{