ceph/src/boost/boost/vmd/assert_is_number.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_NUMBER_HPP)
   8 #define BOOST_VMD_ASSERT_IS_NUMBER_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_NUMBER(sequence)
  24
  25     \brief Asserts that the sequence is a number.
  26
  27     The macro checks that the parameter is a number.
  28     If it is not a number, it forces a compiler error.
  29
  30     The macro normally checks for a number 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 number.
  36
  37   @code
  38
  39     returns  = Normally the macro returns nothing.
  40
  41                If the sequence is a number, 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 number 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                number.
  52
  53   @endcode
  54
  55 */
  56
  57 #if !BOOST_VMD_ASSERT_DATA
  58
  59 #define BOOST_VMD_ASSERT_IS_NUMBER(sequence)
  60
  61 #else
  62
  63 #include <boost/vmd/assert.hpp>
  64 #include <boost/vmd/is_number.hpp>
  65
  66 #define BOOST_VMD_ASSERT_IS_NUMBER(sequence) \
  67     BOOST_VMD_ASSERT \
  68           ( \
  69           BOOST_VMD_IS_NUMBER(sequence), \
  70           BOOST_VMD_IS_NUMBER_ASSERT_ERROR \
  71           ) \
  72 /**/
  73
  74 #endif // !BOOST_VMD_ASSERT_DATA
  75
  76 #endif /* BOOST_PP_VARIADICS */
  77 #endif /* BOOST_VMD_ASSERT_IS_NUMBER_HPP */