ceph/src/boost/boost/vmd/assert_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_ASSERT_IS_ARRAY_HPP)
   8 #define BOOST_VMD_ASSERT_IS_ARRAY_HPP
   9
  10 #include <boost/vmd/detail/setup.hpp>
  11
  12 #if BOOST_PP_VARIADICS
  13
  14 /*
  15
  16   The succeeding comments in this file are in doxygen format.
  17
  18 */
  19
  20 /** \file
  21 */
  22
  23 /** \def BOOST_VMD_ASSERT_IS_ARRAY(sequence)
  24
  25     \brief Asserts that the sequence is a Boost PP array.
  26
  27     The macro checks that the sequence is a Boost PP array.
  28     If it is not a Boost PP array, it forces a compiler error.
  29
  30     The macro normally checks for a Boost PP array only in
  31     debug mode. However an end-user can force the macro
  32     to check or not check by defining the macro
  33     BOOST_VMD_ASSERT_DATA to 1 or 0 respectively.
  34
  35     sequence = a possible Boost PP  array.
  36
  37   @code
  38
  39     returns  = Normally the macro returns nothing.
  40
  41                If the sequence is a Boost PP array, nothing is
  42                output.
  43
  44                For VC++, because there is no sure way of forcing
  45                a compiler error from within a macro without producing
  46                output, if the sequence is not a Boost PP array the
  47                macro forces a compiler error by outputting invalid C++.
  48
  49                For all other compilers a compiler error is forced
  50                without producing output if the sequence is not a
  51                Boost PP array.
  52
  53   @endcode
  54
  55 */
  56
  57 /** \def BOOST_VMD_ASSERT_IS_ARRAY_D(d,sequence)
  58
  59     \brief Asserts that the sequence is a Boost PP array. Re-entrant version.
  60
  61     The macro checks that the sequence is a Boost PP array.
  62     If it is not a Boost PP array, it forces a compiler error.
  63
  64     The macro normally checks for a Boost PP array only in
  65     debug mode. However an end-user can force the macro
  66     to check or not check by defining the macro
  67     BOOST_VMD_ASSERT_DATA to 1 or 0 respectively.
  68
  69     d        = The next available BOOST_PP_WHILE iteration. <br/>
  70     sequence = a possible Boost PP sequence.
  71
  72   @code
  73
  74     returns  = Normally the macro returns nothing.
  75
  76                If the sequence is a Boost PP array, nothing is
  77                output.
  78
  79                For VC++, because there is no sure way of forcing
  80                a compiler error from within a macro without producing
  81                output, if the sequence is not a Boost PP array the
  82                macro forces a compiler error by outputting invalid C++.
  83
  84                For all other compilers a compiler error is forced
  85                without producing output if the sequence is not a
  86                Boost PP array.
  87
  88   @endcode
  89
  90 */
  91
  92 #if !BOOST_VMD_ASSERT_DATA
  93
  94 #define BOOST_VMD_ASSERT_IS_ARRAY(sequence)
  95 #define BOOST_VMD_ASSERT_IS_ARRAY_D(d,sequence)
  96
  97 #else
  98
  99 #include <boost/vmd/is_array.hpp>
 100 #include <boost/vmd/assert.hpp>
 101
 102 #define BOOST_VMD_ASSERT_IS_ARRAY(sequence) \
 103     BOOST_VMD_ASSERT \
 104           ( \
 105           BOOST_VMD_IS_ARRAY(sequence), \
 106           BOOST_VMD_IS_ARRAY_ASSERT_ERROR \
 107           ) \
 108 /**/
 109
 110 #define BOOST_VMD_ASSERT_IS_ARRAY_D(d,sequence) \
 111     BOOST_VMD_ASSERT \
 112           ( \
 113           BOOST_VMD_IS_ARRAY_D(d,sequence), \
 114           BOOST_VMD_IS_ARRAY_ASSERT_ERROR \
 115           ) \
 116 /**/
 117
 118 #endif /* !BOOST_VMD_ASSERT_DATA */
 119
 120 #endif /* BOOST_PP_VARIADICS */
 121 #endif /* BOOST_VMD_ASSERT_IS_ARRAY_HPP */