is_default_constructible.hpp
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1 
2 // (C) Copyright John Maddock 2015.
3 // Use, modification and distribution are subject to the Boost Software License,
4 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt).
6 //
7 // See http://www.boost.org/libs/type_traits for most recent version including documentation.
8 
9 #ifndef BOOST_TT_IS_DEFAULT_CONSTRUCTIBLE_HPP_INCLUDED
10 #define BOOST_TT_IS_DEFAULT_CONSTRUCTIBLE_HPP_INCLUDED
11 
12 #include <cstddef> // size_t
15 
16 #if BOOST_WORKAROUND(BOOST_GCC_VERSION, < 40700)
18 #endif
19 
20 #if !defined(BOOST_NO_CXX11_DECLTYPE) && !BOOST_WORKAROUND(BOOST_MSVC, < 1800) && !BOOST_WORKAROUND(BOOST_GCC_VERSION, < 40500)
21 
23 
24 namespace boost{
25 
26  namespace detail{
27 
29  {
30  template<typename _Tp, typename = decltype(_Tp())>
32 
33  template<typename>
35  };
36 #if BOOST_WORKAROUND(BOOST_GCC_VERSION, < 40700)
37  template<class T, bool b>
38  struct is_default_constructible_abstract_filter
39  {
40  static const bool value = sizeof(is_default_constructible_imp::test<T>(0)) == sizeof(boost::type_traits::yes_type);
41  };
42  template<class T>
43  struct is_default_constructible_abstract_filter<T, true>
44  {
45  static const bool value = false;
46  };
47 #endif
48  }
49 
50 #if BOOST_WORKAROUND(BOOST_GCC_VERSION, < 40700)
51  template <class T> struct is_default_constructible : public integral_constant<bool, detail::is_default_constructible_abstract_filter<T, boost::is_abstract<T>::value>::value>{};
52 #else
53  template <class T> struct is_default_constructible : public integral_constant<bool, sizeof(detail::is_default_constructible_imp::test<T>(0)) == sizeof(boost::type_traits::yes_type)>{};
54 #endif
55  template <class T, std::size_t N> struct is_default_constructible<T[N]> : public is_default_constructible<T>{};
56  template <class T> struct is_default_constructible<T[]> : public is_default_constructible<T>{};
57  template <class T> struct is_default_constructible<T&> : public integral_constant<bool, false>{};
58 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
59  template <class T> struct is_default_constructible<T&&> : public integral_constant<bool, false>{};
60 #endif
61  template <> struct is_default_constructible<void> : public integral_constant<bool, false>{};
62  template <> struct is_default_constructible<void const> : public integral_constant<bool, false>{};
63  template <> struct is_default_constructible<void volatile> : public integral_constant<bool, false>{};
64  template <> struct is_default_constructible<void const volatile> : public integral_constant<bool, false>{};
65 
66 #else
67 
69 
70 namespace boost{
71 
72  // We don't know how to implement this, note we can not use has_trivial_constructor here
73  // because the correct implementation of that trait requires this one:
74  template <class T> struct is_default_constructible : public is_pod<T>{};
75  template <> struct is_default_constructible<void> : public integral_constant<bool, false>{};
76  template <> struct is_default_constructible<void const> : public integral_constant<bool, false>{};
77  template <> struct is_default_constructible<void volatile> : public integral_constant<bool, false>{};
78  template <> struct is_default_constructible<void const volatile> : public integral_constant<bool, false>{};
79 
80 #endif
81 
82 } // namespace boost
83 
84 #endif // BOOST_TT_IS_DEFAULT_CONSTRUCTIBLE_HPP_INCLUDED
static boost::type_traits::yes_type test(int)
typedef void(APIENTRY *GLDEBUGPROC)(GLenum source
BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE.
GLfloat value
const char * detail


librealsense2
Author(s): Sergey Dorodnicov , Doron Hirshberg , Mark Horn , Reagan Lopez , Itay Carpis
autogenerated on Mon May 3 2021 02:47:17