diff options
Diffstat (limited to 'contrib/src/boost/type_traits/is_constructible.hpp')
-rw-r--r-- | contrib/src/boost/type_traits/is_constructible.hpp | 160 |
1 files changed, 80 insertions, 80 deletions
diff --git a/contrib/src/boost/type_traits/is_constructible.hpp b/contrib/src/boost/type_traits/is_constructible.hpp index 3ce9743..2017317 100644 --- a/contrib/src/boost/type_traits/is_constructible.hpp +++ b/contrib/src/boost/type_traits/is_constructible.hpp @@ -1,80 +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
+ +// (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 |