1 files changed, 49 insertions, 0 deletions
diff --git a/boost/vmd/array/to_seq.hpp b/boost/vmd/array/to_seq.hpp
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+++ b/boost/vmd/array/to_seq.hpp
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+
+//  (C) Copyright Edward Diener 2015
+//  Use, modification and distribution are 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).
+
+#if !defined(BOOST_VMD_ARRAY_TO_SEQ_HPP)
+#define BOOST_VMD_ARRAY_TO_SEQ_HPP
+
+#include <boost/vmd/detail/setup.hpp>
+
+#if BOOST_PP_VARIADICS
+
+#include <boost/preprocessor/control/iif.hpp>
+#include <boost/preprocessor/array/to_seq.hpp>
+#include <boost/vmd/empty.hpp>
+#include <boost/vmd/is_empty_array.hpp>
+
+/*
+
+  The succeeding comments in this file are in doxygen format.
+
+*/
+
+/** \file
+*/
+
+/** \def BOOST_VMD_ARRAY_TO_SEQ(array)
+
+    \brief converts an array to a seq.
+
+    array = array to be converted.
+    
+    If the array is an array of 0 elements it is converted to an empty seq.
+    Otherwise the array is converted to a seq with the same number of elements as the array.
+*/
+
+#define BOOST_VMD_ARRAY_TO_SEQ(array) \
+    BOOST_PP_IIF \
+        ( \
+        BOOST_VMD_IS_EMPTY_ARRAY(array), \
+        BOOST_VMD_EMPTY, \
+        BOOST_PP_ARRAY_TO_SEQ \
+        ) \
+    (array) \
+/**/
+
+#endif /* BOOST_PP_VARIADICS */
+#endif /* BOOST_VMD_ARRAY_TO_SEQ_HPP */