Major Refactoring v2.0

1 files changed, 80 insertions, 0 deletions

diff --git a/contrib/src/boost/type_traits/is_constructible.hpp b/contrib/src/boost/type_traits/is_constructible.hpp
new file mode 100644
index 0000000..2017317
--- /dev/null
+++ b/contrib/src/boost/type_traits/is_constructible.hpp
@@ -0,0 +1,80 @@
+
+//  (C) Copyright John Maddock 2015.
+//  Use, modification and distribution are subject to the Boost Software License,
+//  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt).
+//
+//  See http://www.boost.org/libs/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TT_IS_CONSTRUCTIBLE_HPP_INCLUDED
+#define BOOST_TT_IS_CONSTRUCTIBLE_HPP_INCLUDED
+
+#include <boost/type_traits/integral_constant.hpp>
+#include <boost/detail/workaround.hpp>
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_DECLTYPE) && !BOOST_WORKAROUND(BOOST_MSVC, < 1800) && !BOOST_WORKAROUND(BOOST_GCC_VERSION, < 40500)
+
+#include <boost/type_traits/is_destructible.hpp>
+#include <boost/type_traits/is_default_constructible.hpp>
+#include <boost/type_traits/detail/yes_no_type.hpp>
+#include <boost/type_traits/declval.hpp>
+
+namespace boost{
+
+   namespace detail{
+
+      struct is_constructible_imp
+      {
+         template<typename T, typename ...TheArgs, typename = decltype(T(boost::declval<TheArgs>()...))>
+         static boost::type_traits::yes_type test(int);
+         template<typename, typename...>
+         static boost::type_traits::no_type test(...);
+
+         template<typename T, typename Arg, typename = decltype(::new T(boost::declval<Arg>()))>
+         static boost::type_traits::yes_type test1(int);
+         template<typename, typename>
+         static boost::type_traits::no_type test1(...);
+
+         template <typename T>
+         static boost::type_traits::yes_type ref_test(T);
+         template <typename T>
+         static boost::type_traits::no_type ref_test(...);
+      };
+
+   }
+
+   template <class T, class ...Args> struct is_constructible : public integral_constant<bool, sizeof(detail::is_constructible_imp::test<T, Args...>(0)) == sizeof(boost::type_traits::yes_type)>{};
+   template <class T, class Arg> struct is_constructible<T, Arg> : public integral_constant<bool, is_destructible<T>::value && sizeof(detail::is_constructible_imp::test1<T, Arg>(0)) == sizeof(boost::type_traits::yes_type)>{};
+   template <class Ref, class Arg> struct is_constructible<Ref&, Arg> : public integral_constant<bool, sizeof(detail::is_constructible_imp::ref_test<Ref&>(boost::declval<Arg>())) == sizeof(boost::type_traits::yes_type)>{};
+   template <class Ref, class Arg> struct is_constructible<Ref&&, Arg> : public integral_constant<bool, sizeof(detail::is_constructible_imp::ref_test<Ref&&>(boost::declval<Arg>())) == sizeof(boost::type_traits::yes_type)>{};
+
+   template <> struct is_constructible<void> : public false_type{};
+   template <> struct is_constructible<void const> : public false_type{};
+   template <> struct is_constructible<void const volatile> : public false_type{};
+   template <> struct is_constructible<void volatile> : public false_type{};
+
+   template <class T> struct is_constructible<T> : public is_default_constructible<T>{};
+
+#else
+
+#include <boost/type_traits/is_convertible.hpp>
+#include <boost/type_traits/is_default_constructible.hpp>
+
+namespace boost{
+
+   // We don't know how to implement this:
+   template <class T, class U = void> struct is_constructible : public is_convertible<U, T>{};
+   template <class T> struct is_constructible<T, void> : public is_default_constructible<T>{};
+   template <> struct is_constructible<void, void> : public false_type{};
+   template <> struct is_constructible<void const, void> : public false_type{};
+   template <> struct is_constructible<void const volatile, void> : public false_type{};
+   template <> struct is_constructible<void volatile, void> : public false_type{};
+   template <class Ref> struct is_constructible<Ref&, void> : public false_type{};
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+   template <class Ref> struct is_constructible<Ref&&, void> : public false_type{};
+#endif
+#endif
+
+} // namespace boost
+
+#endif // BOOST_TT_IS_CONSTRUCTIBLE_HPP_INCLUDED