summaryrefslogtreecommitdiff
path: root/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'boost/fusion/view/nview/detail/cpp03/nview_impl.hpp')
-rw-r--r--boost/fusion/view/nview/detail/cpp03/nview_impl.hpp78
1 files changed, 78 insertions, 0 deletions
diff --git a/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp b/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp
new file mode 100644
index 0000000000..08c6c9d738
--- /dev/null
+++ b/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp
@@ -0,0 +1,78 @@
+/*=============================================================================
+ Copyright (c) 2009 Hartmut Kaiser
+
+ 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)
+==============================================================================*/
+
+#ifndef BOOST_PP_IS_ITERATING
+
+#if !defined(BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM)
+#define BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM
+
+#include <climits>
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/repeat.hpp>
+#include <boost/preprocessor/iterate.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
+
+#define BOOST_PP_ITERATION_PARAMS_1 \
+ (3, (1, FUSION_MAX_VECTOR_SIZE, \
+ "boost/fusion/view/nview/detail/cpp03/nview_impl.hpp")) \
+ /**/
+
+///////////////////////////////////////////////////////////////////////////////
+namespace boost { namespace fusion { namespace result_of
+{
+ template <typename Sequence
+ , BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(FUSION_MAX_VECTOR_SIZE, int I, INT_MAX)>
+ struct as_nview
+ {
+ typedef mpl::vector_c<
+ int, BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, I)
+ > index_type;
+ typedef nview<Sequence, index_type> type;
+ };
+}}}
+
+#include BOOST_PP_ITERATE()
+
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Preprocessor vertical repetition code
+///////////////////////////////////////////////////////////////////////////////
+#else // defined(BOOST_PP_IS_ITERATING)
+
+#define N BOOST_PP_ITERATION()
+
+#if N < FUSION_MAX_VECTOR_SIZE
+namespace boost { namespace fusion { namespace result_of
+{
+ template <typename Sequence, BOOST_PP_ENUM_PARAMS(N, int I)>
+ struct as_nview<Sequence, BOOST_PP_ENUM_PARAMS(N, I)>
+ {
+ typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type;
+ typedef nview<Sequence, index_type> type;
+ };
+}}}
+#endif
+
+namespace boost { namespace fusion
+{
+ template<BOOST_PP_ENUM_PARAMS(N, int I), typename Sequence>
+ BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+ inline nview<Sequence, mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> >
+ as_nview(Sequence& s)
+ {
+ typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type;
+ return nview<Sequence, index_type>(s);
+ }
+
+}}
+
+#undef N
+
+#endif