ceph/src/boost/boost/vmd/detail/identifier_type.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_DETAIL_IDENTIFIER_TYPE_HPP)
   8 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_HPP
   9
  10 #include <boost/preprocessor/cat.hpp>
  11 #include <boost/preprocessor/comparison/equal.hpp>
  12 #include <boost/preprocessor/control/iif.hpp>
  13 #include <boost/preprocessor/tuple/elem.hpp>
  14 #include <boost/preprocessor/tuple/size.hpp>
  15 #include <boost/vmd/identity.hpp>
  16 #include <boost/vmd/is_tuple.hpp>
  17 #include <boost/vmd/detail/idprefix.hpp>
  18 #include <boost/vmd/detail/number_registration.hpp>
  19 #include <boost/vmd/detail/type_registration.hpp>
  20
  21 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCATENATE(id) \
  22     BOOST_PP_CAT \
  23         ( \
  24         BOOST_VMD_DETAIL_IDENTIFIER_SUBTYPE_REGISTRATION_PREFIX, \
  25         id \
  26         ) \
  27 /**/
  28
  29 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_SIZE(cres) \
  30     BOOST_VMD_IDENTITY_RESULT \
  31         ( \
  32         BOOST_PP_IIF \
  33             ( \
  34             BOOST_PP_EQUAL \
  35                 ( \
  36                 BOOST_PP_TUPLE_SIZE(cres), \
  37                 2 \
  38                 ), \
  39             BOOST_PP_TUPLE_ELEM, \
  40             BOOST_VMD_IDENTITY(BOOST_VMD_TYPE_IDENTIFIER) \
  41             ) \
  42         (0,cres) \
  43         ) \
  44 /**/
  45
  46 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_SIZE_D(d,cres) \
  47     BOOST_VMD_IDENTITY_RESULT \
  48         ( \
  49         BOOST_PP_IIF \
  50             ( \
  51             BOOST_PP_EQUAL_D \
  52                 ( \
  53                 d, \
  54                 BOOST_PP_TUPLE_SIZE(cres), \
  55                 2 \
  56                 ), \
  57             BOOST_PP_TUPLE_ELEM, \
  58             BOOST_VMD_IDENTITY(BOOST_VMD_TYPE_IDENTIFIER) \
  59             ) \
  60         (0,cres) \
  61         ) \
  62 /**/
  63
  64 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCAT(cres) \
  65     BOOST_VMD_IDENTITY_RESULT \
  66         ( \
  67         BOOST_PP_IIF \
  68             ( \
  69             BOOST_VMD_IS_TUPLE(cres), \
  70             BOOST_VMD_DETAIL_IDENTIFIER_TYPE_SIZE, \
  71             BOOST_VMD_IDENTITY(BOOST_VMD_TYPE_IDENTIFIER) \
  72             ) \
  73         (cres) \
  74         ) \
  75 /**/
  76
  77 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCAT_D(d,cres) \
  78     BOOST_VMD_IDENTITY_RESULT \
  79         ( \
  80         BOOST_PP_IIF \
  81             ( \
  82             BOOST_VMD_IS_TUPLE(cres), \
  83             BOOST_VMD_DETAIL_IDENTIFIER_TYPE_SIZE_D, \
  84             BOOST_VMD_IDENTITY(BOOST_VMD_TYPE_IDENTIFIER) \
  85             ) \
  86         (d,cres) \
  87         ) \
  88 /**/
  89
  90 /*
  91
  92   Determines the type of an identifier.
  93
  94   The type may be that of an identifier or else
  95   it may be a subtype.
  96
  97   Assumes the 'id' is a valid identifier id
  98
  99   Expands to the appropriate type
 100
 101 */
 102
 103 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE(id) \
 104     BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCAT \
 105         ( \
 106         BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCATENATE(id) \
 107         ) \
 108 /**/
 109
 110 #define BOOST_VMD_DETAIL_IDENTIFIER_TYPE_D(d,id) \
 111     BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCAT_D \
 112         ( \
 113         d, \
 114         BOOST_VMD_DETAIL_IDENTIFIER_TYPE_CONCATENATE(id) \
 115         ) \
 116 /**/
 117
 118 #endif /* BOOST_VMD_DETAIL_IDENTIFIER_TYPE_HPP */