ceph/src/boost/boost/mp11/detail/config.hpp

   1 #ifndef BOOST_MP11_DETAIL_CONFIG_HPP_INCLUDED
   2 #define BOOST_MP11_DETAIL_CONFIG_HPP_INCLUDED
   3
   4 //  Copyright 2016 Peter Dimov.
   5 //
   6 //  Distributed under the Boost Software License, Version 1.0.
   7 //
   8 //  See accompanying file LICENSE_1_0.txt or copy at
   9 //  http://www.boost.org/LICENSE_1_0.txt
  10
  11 #include <boost/config.hpp>
  12 #include <boost/detail/workaround.hpp>
  13
  14 #if defined( BOOST_NO_CXX11_CONSTEXPR )
  15
  16 #  define BOOST_MP11_NO_CONSTEXPR
  17
  18 #elif defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, < 1920 )
  19
  20 #  define BOOST_MP11_NO_CONSTEXPR
  21
  22 #endif
  23
  24 #if defined(__cpp_fold_expressions) && __cpp_fold_expressions >= 201603
  25
  26 #  define BOOST_MP11_HAS_FOLD_EXPRESSIONS
  27
  28 #elif defined(BOOST_CLANG) && defined(__has_cpp_attribute)
  29 # if __has_cpp_attribute(fallthrough) && __cplusplus >= 201406L // Clang 3.9+ in c++1z mode
  30
  31 #  define BOOST_MP11_HAS_FOLD_EXPRESSIONS
  32
  33 # endif
  34 #endif
  35
  36 #if defined(__has_builtin)
  37 # if __has_builtin(__type_pack_element)
  38
  39 #  define BOOST_MP11_HAS_TYPE_PACK_ELEMENT
  40
  41 # endif
  42 #endif
  43
  44 #endif // #ifndef BOOST_MP11_DETAIL_CONFIG_HPP_INCLUDED