ceph/src/boost/boost/metaparse/v1/one_of_c.hpp

   1 #ifndef BOOST_METAPARSE_V1_ONE_OF_C_HPP
   2 #define BOOST_METAPARSE_V1_ONE_OF_C_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2013.
   5 // Distributed under the Boost Software License, Version 1.0.
   6 //    (See accompanying file LICENSE_1_0.txt or copy at
   7 //          http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #include <boost/metaparse/v1/one_of.hpp>
  10 #include <boost/metaparse/v1/lit_c.hpp>
  11
  12 #include <boost/preprocessor/arithmetic/sub.hpp>
  13 #include <boost/preprocessor/cat.hpp>
  14 #include <boost/preprocessor/punctuation/comma_if.hpp>
  15 #include <boost/preprocessor/repetition/enum.hpp>
  16 #include <boost/preprocessor/repetition/enum_params.hpp>
  17 #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
  18 #include <boost/preprocessor/repetition/repeat.hpp>
  19 #include <boost/preprocessor/tuple/eat.hpp>
  20
  21 #include <climits>
  22
  23 namespace boost
  24 {
  25   namespace metaparse
  26   {
  27     namespace v1
  28     {
  29       #ifdef BOOST_NO_SCALAR_VALUE
  30       #  error BOOST_NO_SCALAR_VALUE already defined
  31       #endif
  32       #define BOOST_NO_SCALAR_VALUE LONG_MAX
  33
  34       template <
  35         BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(
  36           BOOST_METAPARSE_LIMIT_ONE_OF_SIZE,
  37           long C,
  38           BOOST_NO_SCALAR_VALUE
  39         )
  40       >
  41       struct one_of_c;
  42
  43       #ifdef BOOST_METAPARSE_ONE_OF_C_LIT
  44       #  error BOOST_METAPARSE_ONE_OF_C_LIT already defined
  45       #endif
  46       #define BOOST_METAPARSE_ONE_OF_C_LIT(z, n, unused) lit_c<BOOST_PP_CAT(C, n)>
  47
  48       #ifdef BOOST_METAPARSE_ONE_OF_C_CASE
  49       #  error BOOST_METAPARSE_ONE_OF_C_CASE already defined
  50       #endif
  51       #define BOOST_METAPARSE_ONE_OF_C_CASE(z, n, unused) \
  52         template <BOOST_PP_ENUM_PARAMS(n, long C)> \
  53         struct \
  54           one_of_c< \
  55             BOOST_PP_ENUM_PARAMS(n, C) \
  56             BOOST_PP_COMMA_IF(n) \
  57             BOOST_PP_ENUM( \
  58               BOOST_PP_SUB(BOOST_METAPARSE_LIMIT_ONE_OF_SIZE, n), \
  59               BOOST_NO_SCALAR_VALUE BOOST_PP_TUPLE_EAT(3), \
  60               ~ \
  61             ) \
  62           > : \
  63           one_of< BOOST_PP_ENUM(n, BOOST_METAPARSE_ONE_OF_C_LIT, ~) > \
  64         {};
  65
  66       BOOST_PP_REPEAT(
  67         BOOST_METAPARSE_LIMIT_ONE_OF_SIZE,
  68         BOOST_METAPARSE_ONE_OF_C_CASE,
  69         ~
  70       )
  71
  72       #undef BOOST_METAPARSE_ONE_OF_C_CASE
  73       #undef BOOST_METAPARSE_ONE_OF_C_LIT
  74       #undef BOOST_NO_SCALAR_VALUE
  75     }
  76   }
  77 }
  78
  79 #endif
  80