ceph/src/boost/boost/vmd/detail/is_general_identifier.hpp

   1
   2 //  (C) Copyright Edward Diener 2020
   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_IS_GENERAL_IDENTIFIER_HPP)
   8 #define BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_HPP
   9
  10 #include <boost/preprocessor/comparison/equal.hpp>
  11 #include <boost/preprocessor/control/iif.hpp>
  12 #include <boost/preprocessor/logical/bitor.hpp>
  13 #include <boost/preprocessor/punctuation/is_begin_parens.hpp>
  14 #include <boost/preprocessor/variadic/size.hpp>
  15 #include <boost/preprocessor/variadic/elem.hpp>
  16 #include <boost/vmd/identity.hpp>
  17 #include <boost/vmd/is_empty.hpp>
  18 #include <boost/vmd/detail/identifier_concat.hpp>
  19
  20 #define BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_VSEQ_RESULT(ignored) \
  21     BOOST_VMD_IDENTITY_RESULT \
  22         ( \
  23         BOOST_VMD_IDENTITY(1)(ignored) \
  24         ) \
  25 /**/
  26
  27 #define BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_VSEQ_ID(vseq) \
  28     BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_VSEQ_RESULT(BOOST_VMD_DETAIL_IDENTIFIER_CONCATENATE(vseq)) \
  29 /**/
  30
  31 #define BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_VSEQ(vseq) \
  32     BOOST_VMD_IDENTITY_RESULT \
  33         ( \
  34         BOOST_PP_IIF \
  35           ( \
  36           BOOST_PP_BITOR \
  37             ( \
  38             BOOST_VMD_IS_EMPTY(vseq), \
  39             BOOST_PP_IS_BEGIN_PARENS(vseq) \
  40             ), \
  41           BOOST_VMD_IDENTITY(0), \
  42           BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_VSEQ_ID \
  43           ) \
  44         (vseq) \
  45         ) \
  46 /**/
  47
  48 #define BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_SINGLE(...) \
  49     BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_VSEQ(BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__)) \
  50 /**/
  51
  52 #define BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER(...) \
  53     BOOST_VMD_IDENTITY_RESULT \
  54         ( \
  55         BOOST_PP_IIF \
  56             ( \
  57             BOOST_PP_EQUAL(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__),1), \
  58             BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_SINGLE, \
  59             BOOST_VMD_IDENTITY(0) \
  60             ) \
  61         (__VA_ARGS__) \
  62         ) \
  63 /**/
  64
  65 #endif /* BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER_HPP */