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diff --git a/boost/vmd/size.hpp b/boost/vmd/size.hpp
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+
+//  (C) Copyright Edward Diener 2011-2015
+//  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_SIZE_HPP)
+#define BOOST_VMD_SIZE_HPP
+
+#include <boost/vmd/detail/setup.hpp>
+
+#if BOOST_PP_VARIADICS
+
+#include <boost/vmd/detail/sequence_size.hpp>
+
+/*
+
+  The succeeding comments in this file are in doxygen format.
+
+*/
+
+/** \file
+*/
+
+/** \def BOOST_VMD_SIZE(sequence)
+
+    \brief Returns the size of a sequence.
+
+    sequence  = A sequence to test.
+
+    returns   = If the sequence is empty returns 0, else returns the number of elements
+                in the sequence.
+    
+*/
+
+#define BOOST_VMD_SIZE(sequence) \
+    BOOST_VMD_DETAIL_SEQUENCE_SIZE(sequence) \
+/**/
+
+/** \def BOOST_VMD_SIZE_D(d,sequence)
+
+    \brief Returns the size of a sequence. Re-entrant version.
+
+    d         = The next available BOOST_PP_WHILE iteration. 
+    sequence  = A sequence to test.
+
+    returns   = If the sequence is empty returns 0, else returns the number of elements
+                in the sequence.
+    
+*/
+
+#define BOOST_VMD_SIZE_D(d,sequence) \
+    BOOST_VMD_DETAIL_SEQUENCE_SIZE_D(d,sequence) \
+/**/
+
+#endif /* BOOST_PP_VARIADICS */
+#endif /* BOOST_VMD_SIZE_HPP */