ceph/src/boost/libs/optional/include/boost/optional/detail/optional_factory_support.hpp

   1 // Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
   2 // Copyright (C) 2016 Andrzej Krzemienski.
   3 //
   4 // Use, modification, and distribution is subject to the Boost Software
   5 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 // See http://www.boost.org/libs/optional for documentation.
   9 //
  10 // You are welcome to contact the author at:
  11 //  fernando_cacciola@hotmail.com
  12 //  akrzemi1@gmail.com
  13
  14 #ifndef BOOST_OPTIONAL_OPTIONAL_DETAIL_OPTIONAL_FACTORY_SUPPORT_AJK_12FEB2016_HPP
  15 #define BOOST_OPTIONAL_OPTIONAL_DETAIL_OPTIONAL_FACTORY_SUPPORT_AJK_12FEB2016_HPP
  16
  17 // Daniel Wallin discovered that bind/apply.hpp badly interacts with the apply<>
  18 // member template of a factory as used in the optional<> implementation.
  19 // He proposed this simple fix which is to move the call to apply<> outside
  20 // namespace boost.
  21 namespace boost_optional_detail
  22 {
  23   template <class T, class Factory>
  24   inline void construct(Factory const& factory, void* address)
  25   {
  26     factory.BOOST_NESTED_TEMPLATE apply<T>(address);
  27   }
  28 }
  29
  30 namespace boost
  31 {
  32   class in_place_factory_base ;
  33   class typed_in_place_factory_base ;
  34 }
  35
  36 #endif // header guard