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diff --git a/boost/vmd/is_seq.hpp b/boost/vmd/is_seq.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_IS_SEQ_HPP)
+#define BOOST_VMD_IS_SEQ_HPP
+
+#include <boost/vmd/detail/setup.hpp>
+
+#if BOOST_PP_VARIADICS
+
+#include <boost/vmd/detail/is_seq.hpp>
+
+/*
+
+  The succeeding comments in this file are in doxygen format.
+
+*/
+
+/** \file
+*/
+
+/** \def BOOST_VMD_IS_SEQ(sequence)
+
+    \brief Determines if a sequence is a Boost PP seq.
+
+    The macro checks that the sequence is a Boost PP seq.
+    It returns 1 if it is a seq, else if returns 0.
+    
+    sequence = a possible Boost PP seq
+
+    returns = 1 if it a seq, else returns 0.
+    
+    A single set of parentheses, with a single element, 
+    is parsed as a tuple and not a seq. To be parsed as
+    a seq the input needs to be more than one consecutive
+    sets of parentheses, each with a single element of data.
+    
+*/
+
+#define BOOST_VMD_IS_SEQ(sequence) \
+    BOOST_VMD_DETAIL_IS_SEQ(sequence) \
+/**/
+
+/** \def BOOST_VMD_IS_SEQ_D(d,sequence)
+
+    \brief Determines if a sequence is a Boost PP seq. Re-entrant version.
+
+    The macro checks that the sequence is a Boost PP seq.
+    It returns 1 if it is a seq, else if returns 0.
+    
+    d        = The next available BOOST_PP_WHILE iteration. 
+    sequence = a possible Boost PP seq
+
+    returns = 1 if it a seq, else returns 0.
+    
+    A single set of parentheses, with a single element, 
+    is parsed as a tuple and not a seq. To be parsed as
+    a seq the input needs to be more than one consecutive
+    sets of parentheses, each with a single element of data.
+    
+*/
+
+#define BOOST_VMD_IS_SEQ_D(d,sequence) \
+    BOOST_VMD_DETAIL_IS_SEQ_D(d,sequence) \
+/**/
+
+#endif /* BOOST_PP_VARIADICS */
+#endif /* BOOST_VMD_IS_SEQ_HPP */