# Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world.

This is the documentation for a snapshot of the develop branch, built from commit e028efd1e7.

### boost/vmd/is_tuple.hpp


//  (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

#if !defined(BOOST_VMD_IS_TUPLE_HPP)
#define BOOST_VMD_IS_TUPLE_HPP

#include <boost/vmd/detail/setup.hpp>

#include <boost/vmd/detail/is_tuple.hpp>

/*

The succeeding comments in this file are in doxygen format.

*/

/** \file
*/

/** \def BOOST_VMD_IS_TUPLE(sequence)

\brief Tests whether a sequence is a Boost PP tuple.

The macro checks to see if a sequence is a Boost PP tuple.
A Boost PP tuple is preprocessor tokens enclosed by a set of parentheses
with no preprocessing tokens before or after the parentheses.

sequence = a possible tuple

returns = 1 if the sequence is a Boost PP tuple,
0 if it is not.

*/

#define BOOST_VMD_IS_TUPLE(sequence) \
BOOST_VMD_DETAIL_IS_TUPLE(sequence) \
/**/