ceph/src/boost/libs/vmd/include/boost/vmd/is_tuple.hpp

   1
   2 //  (C) Copyright Edward Diener 2011-2015
   3 //  Use, modification and distribution are subject to the Boost Software License,
   4 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 //  http://www.boost.org/LICENSE_1_0.txt).
   6
   7 #if !defined(BOOST_VMD_IS_TUPLE_HPP)
   8 #define BOOST_VMD_IS_TUPLE_HPP
   9
  10 #include <boost/vmd/detail/setup.hpp>
  11
  12 #if BOOST_PP_VARIADICS
  13
  14 #include <boost/vmd/detail/is_tuple.hpp>
  15
  16 /*
  17
  18   The succeeding comments in this file are in doxygen format.
  19
  20 */
  21
  22 /** \file
  23 */
  24
  25 /** \def BOOST_VMD_IS_TUPLE(sequence)
  26
  27     \brief Tests whether a sequence is a Boost PP tuple.
  28
  29     The macro checks to see if a sequence is a Boost PP tuple.
  30     A Boost PP tuple is preprocessor tokens enclosed by a set of parentheses
  31     with no preprocessing tokens before or after the parentheses.
  32
  33     sequence = a possible tuple
  34
  35     returns = 1 if the sequence is a Boost PP tuple.
  36               0 if it is not.
  37
  38 */
  39
  40 #define BOOST_VMD_IS_TUPLE(sequence) \
  41     BOOST_VMD_DETAIL_IS_TUPLE(sequence) \
  42 /**/
  43
  44 #endif /* BOOST_PP_VARIADICS */
  45 #endif /* BOOST_VMD_IS_TUPLE_HPP */