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### boost/vmd/is_seq.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_SEQ_HPP)
#define BOOST_VMD_IS_SEQ_HPP

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

#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. <br/>
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 */