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
55