ceph/src/boost/boost/poly_collection/detail/is_constructible.hpp

   1 /* Copyright 2016-2017 Joaquin M Lopez Munoz.
   2  * Distributed under the Boost Software License, Version 1.0.
   3  * (See accompanying file LICENSE_1_0.txt or copy at
   4  * http://www.boost.org/LICENSE_1_0.txt)
   5  *
   6  * See http://www.boost.org/libs/poly_collection for library home page.
   7  */
   8
   9 #ifndef BOOST_POLY_COLLECTION_DETAIL_IS_CONSTRUCIBLE_HPP
  10 #define BOOST_POLY_COLLECTION_DETAIL_IS_CONSTRUCIBLE_HPP
  11
  12 #if defined(_MSC_VER)
  13 #pragma once
  14 #endif
  15
  16 #include <boost/config.hpp>
  17 #include <boost/detail/workaround.hpp>
  18
  19 #if BOOST_WORKAROUND(BOOST_MSVC_FULL_VER,<190023918)
  20 /* https://connect.microsoft.com/VisualStudio/Feedback/Details/2118677,
  21  * fixed in VS2015U2 according to
  22  * https://blogs.msdn.microsoft.com/vcblog/2016/03/31/
  23  * visual-c-2015-update-2-bug-fixes/, via github.com/dodheim
  24  */
  25
  26 #include <boost/type_traits/is_constructible.hpp>
  27
  28 namespace boost{
  29
  30 namespace poly_collection{
  31
  32 namespace detail{
  33
  34 template<typename T,typename... Args>
  35 struct is_constructible:std::integral_constant<
  36   bool,
  37   boost::is_constructible<T,Args...>::value
  38 >{};
  39
  40 } /* namespace poly_collection::detail */
  41
  42 } /* namespace poly_collection */
  43
  44 } /* namespace boost */
  45
  46 #else
  47 #include <type_traits>
  48
  49 namespace boost{
  50
  51 namespace poly_collection{
  52
  53 namespace detail{
  54
  55 template<typename T,typename... Args>
  56 using is_constructible=std::is_constructible<T,Args...>;
  57
  58 } /* namespace poly_collection::detail */
  59
  60 } /* namespace poly_collection */
  61
  62 } /* namespace boost */
  63
  64 #endif
  65 #endif