ceph/src/boost/libs/vmd/test/test_doc_whyhow.cxx

   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 #include <boost/vmd/elem.hpp>
   8 #include <boost/vmd/equal.hpp>
   9 #include <boost/vmd/get_type.hpp>
  10 #include <boost/vmd/is_identifier.hpp>
  11 #include <boost/vmd/is_seq.hpp>
  12 #include <boost/vmd/is_tuple.hpp>
  13 #include <boost/vmd/to_tuple.hpp>
  14 #include <boost/preprocessor/control/iif.hpp>
  15 #include <boost/detail/lightweight_test.hpp>
  16
  17 int main()
  18   {
  19
  20 #if BOOST_PP_VARIADICS
  21
  22  #define BOOST_VMD_REGISTER_Seq (Seq)
  23  #define BOOST_VMD_REGISTER_Tuple (Tuple)
  24  #define BOOST_VMD_REGISTER_Unknown (Unknown)
  25
  26  #define BOOST_VMD_DETECT_Seq_Seq
  27  #define BOOST_VMD_DETECT_Tuple_Tuple
  28  #define BOOST_VMD_DETECT_Unknown_Unknown
  29
  30  #define AMACRO(param)                 \
  31    BOOST_PP_IIF                        \
  32      (                                 \
  33      BOOST_VMD_IS_SEQ(param),          \
  34      Seq,                              \
  35      BOOST_PP_IIF                      \
  36        (                               \
  37        BOOST_VMD_IS_TUPLE(param),      \
  38        Tuple,                          \
  39        Unknown                         \
  40        )                               \
  41      )
  42
  43  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO((0)(1)),Seq));
  44  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO((0,1)),Tuple));
  45  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO(24),Unknown));
  46
  47  #define BOOST_VMD_REGISTER_NAME (NAME)
  48  #define BOOST_VMD_REGISTER_ADDRESS (ADDRESS)
  49
  50  #define AMACRO1(param)              \
  51    BOOST_PP_IIF                      \
  52      (                               \
  53      BOOST_VMD_IS_IDENTIFIER(param), \
  54      AMACRO1_IDENTIFIER,             \
  55      AMACRO1_NO_IDENTIFIER           \
  56      )                               \
  57    (param)
  58
  59  #define AMACRO1_IDENTIFIER(param) AMACRO1_ ## param
  60  #define AMACRO1_NO_IDENTIFIER(param) Parameter is not an identifier
  61  #define AMACRO1_NAME Identifier is a NAME
  62  #define AMACRO1_ADDRESS Identifier is an ADDRESS
  63
  64  #define BOOST_VMD_REGISTER_Parameter (Parameter)
  65  #define BOOST_VMD_REGISTER_is (is)
  66  #define BOOST_VMD_REGISTER_not (not)
  67  #define BOOST_VMD_REGISTER_an (an)
  68  #define BOOST_VMD_REGISTER_identifier (identifier)
  69  #define BOOST_VMD_REGISTER_Identifier (Identifier)
  70  #define BOOST_VMD_REGISTER_a (a)
  71
  72  #define BOOST_VMD_DETECT_NAME_NAME
  73  #define BOOST_VMD_DETECT_ADDRESS_ADDRESS
  74  #define BOOST_VMD_DETECT_Parameter_Parameter
  75  #define BOOST_VMD_DETECT_is_is
  76  #define BOOST_VMD_DETECT_not_not
  77  #define BOOST_VMD_DETECT_an_an
  78  #define BOOST_VMD_DETECT_identifier_identifier
  79  #define BOOST_VMD_DETECT_Identifier_Identifier
  80  #define BOOST_VMD_DETECT_a_a
  81
  82  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO1((44)),Parameter is not an identifier));
  83  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO1(NAME),Identifier is a NAME));
  84  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO1(ADDRESS),Identifier is an ADDRESS));
  85
  86  #define AMACRO2(param)                        \
  87    BOOST_PP_IIF                                \
  88      (                                         \
  89      BOOST_VMD_IS_IDENTIFIER(param,NAME),      \
  90      AMACRO2_NAME,                             \
  91      BOOST_PP_IIF                              \
  92        (                                       \
  93        BOOST_VMD_IS_IDENTIFIER(param,ADDRESS), \
  94        AMACRO2_ADDRESS,                        \
  95        AMACRO2_NO_IDENTIFIER                   \
  96        )                                       \
  97      )                                         \
  98    (param)
  99
 100  #define BOOST_VMD_REGISTER_or (or)
 101  #define BOOST_VMD_DETECT_or_or
 102
 103  #define AMACRO2_NO_IDENTIFIER(param) Parameter is not a NAME or ADDRESS identifier
 104  #define AMACRO2_NAME(param) Identifier is a NAME
 105  #define AMACRO2_ADDRESS(param) Identifier is an ADDRESS
 106
 107  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO2((44)),Parameter is not a NAME or ADDRESS identifier));
 108  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO2(NAME),Identifier is a NAME));
 109  BOOST_TEST(BOOST_VMD_EQUAL(AMACRO2(ADDRESS),Identifier is an ADDRESS));
 110
 111  #define ASEQUENCE (1,2) NAME 147 BOOST_VMD_TYPE_NUMBER (a)(b)
 112
 113  #define BOOST_VMD_REGISTER_b (b)
 114  #define BOOST_VMD_DETECT_b_b
 115
 116  BOOST_TEST(BOOST_VMD_EQUAL(BOOST_VMD_TO_TUPLE(ASEQUENCE),((1,2),NAME,147,BOOST_VMD_TYPE_NUMBER,(a)(b))));
 117  BOOST_TEST(BOOST_VMD_EQUAL(BOOST_VMD_ELEM(2,ASEQUENCE),147));
 118
 119  BOOST_TEST(BOOST_VMD_EQUAL(BOOST_VMD_GET_TYPE((1,2)),BOOST_VMD_TYPE_TUPLE));
 120  BOOST_TEST(BOOST_VMD_EQUAL(BOOST_VMD_GET_TYPE(235),BOOST_VMD_TYPE_NUMBER));
 121
 122 #else
 123
 124 BOOST_ERROR("No variadic macro support");
 125
 126 #endif
 127
 128   return boost::report_errors();
 129
 130   }