ceph/src/boost/libs/vmd/include/boost/vmd/is_array.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_ARRAY_HPP)
   8 #define BOOST_VMD_IS_ARRAY_HPP
   9
  10 #include <boost/vmd/detail/setup.hpp>
  11
  12 #if BOOST_PP_VARIADICS
  13
  14 #include <boost/vmd/detail/is_array.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_ARRAY(sequence)
  26
  27     \brief Determines if a sequence is a Boost PP array.
  28
  29     The macro checks that the sequence is a Boost PP array.
  30     It returns 1 if it is an array, else if returns 0.
  31
  32     sequence = a possible Boost PP array.
  33
  34     returns  = 1 if it is an array, else returns 0.
  35
  36     The macro will generate a preprocessing error if the input
  37     is in the form of an array but its first tuple element, instead
  38     of being a number, is a preprocessor token which VMD cannot parse,
  39     as in the example '(&2,(0,1))' which is a valid tuple but an invalid
  40     array.
  41
  42 */
  43
  44 #define BOOST_VMD_IS_ARRAY(sequence) \
  45     BOOST_VMD_DETAIL_IS_ARRAY(sequence) \
  46 /**/
  47
  48 /** \def BOOST_VMD_IS_ARRAY_D(d,sequence)
  49
  50     \brief Determines if a sequence is a Boost PP array. Re-entrant version.
  51
  52     The macro checks that the sequence is a Boost PP array.
  53     It returns 1 if it is an array, else if returns 0.
  54
  55     d        = The next available BOOST_PP_WHILE iteration.
  56     sequence = a possible Boost PP array.
  57
  58     returns = 1 if it is an array, else returns 0.
  59
  60     The macro will generate a preprocessing error if the input
  61     is in the form of an array but its first tuple element, instead
  62     of being a number, is a preprocessor token which VMD cannot parse,
  63     as in the example '(&2,(0,1))' which is a valid tuple but an invalid
  64     array.
  65
  66 */
  67
  68 #define BOOST_VMD_IS_ARRAY_D(d,sequence) \
  69     BOOST_VMD_DETAIL_IS_ARRAY_D(d,sequence) \
  70 /**/
  71
  72 #endif /* BOOST_PP_VARIADICS */
  73 #endif /* BOOST_VMD_IS_ARRAY_HPP */