ceph/src/boost/libs/vmd/include/boost/vmd/detail/parens.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_PARENS_HPP)
   8 #define BOOST_VMD_DETAIL_PARENS_HPP
   9
  10 #include <boost/preprocessor/control/iif.hpp>
  11 #include <boost/preprocessor/punctuation/is_begin_parens.hpp>
  12 #include <boost/preprocessor/variadic/elem.hpp>
  13 #include <boost/vmd/empty.hpp>
  14 #include <boost/vmd/detail/mods.hpp>
  15 #include <boost/vmd/detail/parens_split.hpp>
  16 #include <boost/vmd/detail/parens_common.hpp>
  17
  18 #define BOOST_VMD_DETAIL_PARENS_PROCESS(vseq) \
  19     BOOST_PP_IIF \
  20       ( \
  21       BOOST_PP_IS_BEGIN_PARENS(vseq), \
  22       BOOST_VMD_DETAIL_BEGIN_PARENS, \
  23       BOOST_VMD_EMPTY \
  24       ) \
  25     (vseq) \
  26 /**/
  27
  28 #define BOOST_VMD_DETAIL_PARENS(...) \
  29     BOOST_PP_IIF \
  30         ( \
  31         BOOST_VMD_DETAIL_MODS_IS_RESULT_AFTER \
  32             ( \
  33             BOOST_VMD_DETAIL_NEW_MODS(BOOST_VMD_ALLOW_AFTER,__VA_ARGS__) \
  34             ), \
  35         BOOST_VMD_DETAIL_PARENS_SPLIT, \
  36         BOOST_VMD_DETAIL_PARENS_PROCESS \
  37         ) \
  38     (BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__)) \
  39 /**/
  40
  41 #define BOOST_VMD_DETAIL_PARENS_D(d,...) \
  42     BOOST_PP_IIF \
  43         ( \
  44         BOOST_VMD_DETAIL_MODS_IS_RESULT_AFTER \
  45             ( \
  46             BOOST_VMD_DETAIL_NEW_MODS_D(d,BOOST_VMD_ALLOW_AFTER,__VA_ARGS__) \
  47             ), \
  48         BOOST_VMD_DETAIL_PARENS_SPLIT, \
  49         BOOST_VMD_DETAIL_PARENS_PROCESS \
  50         ) \
  51     (BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__)) \
  52 /**/
  53
  54 #endif /* BOOST_VMD_DETAIL_PARENS_HPP */