ceph/src/boost/boost/serialization/detail/is_default_constructible.hpp

   1 #ifndef  BOOST_SERIALIZATION_DETAIL_IS_DEFAULT_CONSTRUCTIBLE_HPP
   2 #define BOOST_SERIALIZATION_DETAIL_IS_DEFAULT_CONSTRUCTIBLE_HPP
   3
   4 // MS compatible compilers support #pragma once
   5 #if defined(_MSC_VER)
   6 # pragma once
   7 #endif
   8
   9 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  10 // is_default_constructible.hpp: serialization for loading stl collections
  11 //
  12 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
  13 // Use, modification and distribution is subject to the Boost Software
  14 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  15 // http://www.boost.org/LICENSE_1_0.txt)
  16
  17 //  See http://www.boost.org for updates, documentation, and revision history.
  18
  19 #include <boost/config.hpp>
  20
  21 #if ! defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
  22     #include <type_traits>
  23     namespace boost{
  24     namespace serialization {
  25     namespace detail {
  26
  27     template<typename T>
  28     struct is_default_constructible : public std::is_default_constructible<T> {};
  29
  30     } // detail
  31     } // serializaition
  32     } // boost
  33 #else
  34     // we don't have standard library support for is_default_constructible
  35     // so we fake it by using boost::has_trivial_construtor.  But this is not
  36     // actually correct because it's possible that a default constructor
  37     // to be non trivial. So when using this, make sure you're not using your
  38     // own definition of of T() but are using the actual default one!
  39     #include <boost/type_traits/has_trivial_constructor.hpp>
  40     namespace boost{
  41     namespace serialization {
  42     namespace detail {
  43
  44     template<typename T>
  45     struct is_default_constructible : public boost::has_trivial_constructor<T> {};
  46
  47     } // detail
  48     } // serializaition
  49     } // boost
  50
  51 #endif
  52
  53
  54 #endif //  BOOST_SERIALIZATION_DETAIL_IS_DEFAULT_CONSTRUCTIBLE_HPP