[libcxx] Add <experimental/type_traits> for LFTS

[EricWF]

Summary

This adds the <experimental/type_traits> (minus invocation traits). Mostly just the _v traits.

[K-ballo]

include/experimental/type_traits

417

Shouldn't this go right after is_convertible_v?

test/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp

109

void is not a literal type in C++11, does that matter?

[EricWF]

Fix some comments brought up by K-Ballo.

[EricWF]

I moved the __has_feature(variable_templates) endif to before the invocation traits.

[mclow.lists]

LGTM - sorry for the long wait.

include/experimental/type_traits

+// -*- C++ -*-
+//===-------------------------- type_traits -------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_EXPERIMENTAL_TYPE_TRAITS
+#define _LIBCPP_EXPERIMENTAL_TYPE_TRAITS
+
+/**
+    experimental/type_traits synopsis
+
+// C++1y
+#include <type_traits>
+
+namespace std {
+namespace experimental {
+inline namespace fundamentals_v1 {
+
+  // See C++14 20.10.4.1, primary type categories
+  template <class T> constexpr bool is_void_v
+    = is_void<T>::value;
+  template <class T> constexpr bool is_null_pointer_v
+    = is_null_pointer<T>::value;
+  template <class T> constexpr bool is_integral_v
+    = is_integral<T>::value;
+  template <class T> constexpr bool is_floating_point_v
+    = is_floating_point<T>::value;
+  template <class T> constexpr bool is_array_v
+    = is_array<T>::value;
+  template <class T> constexpr bool is_pointer_v
+    = is_pointer<T>::value;
+  template <class T> constexpr bool is_lvalue_reference_v
+    = is_lvalue_reference<T>::value;
+  template <class T> constexpr bool is_rvalue_reference_v
+    = is_rvalue_reference<T>::value;
+  template <class T> constexpr bool is_member_object_pointer_v
+    = is_member_object_pointer<T>::value;
+  template <class T> constexpr bool is_member_function_pointer_v
+    = is_member_function_pointer<T>::value;
+  template <class T> constexpr bool is_enum_v
+    = is_enum<T>::value;
+  template <class T> constexpr bool is_union_v
+    = is_union<T>::value;
+  template <class T> constexpr bool is_class_v
+    = is_class<T>::value;
+  template <class T> constexpr bool is_function_v
+    = is_function<T>::value;
+
+  // See C++14 20.10.4.2, composite type categories
+  template <class T> constexpr bool is_reference_v
+    = is_reference<T>::value;
+  template <class T> constexpr bool is_arithmetic_v
+    = is_arithmetic<T>::value;
+  template <class T> constexpr bool is_fundamental_v
+    = is_fundamental<T>::value;
+  template <class T> constexpr bool is_object_v
+    = is_object<T>::value;
+  template <class T> constexpr bool is_scalar_v
+    = is_scalar<T>::value;
+  template <class T> constexpr bool is_compound_v
+    = is_compound<T>::value;
+  template <class T> constexpr bool is_member_pointer_v
+    = is_member_pointer<T>::value;
+
+  // See C++14 20.10.4.3, type properties
+  template <class T> constexpr bool is_const_v
+    = is_const<T>::value;
+  template <class T> constexpr bool is_volatile_v
+    = is_volatile<T>::value;
+  template <class T> constexpr bool is_trivial_v
+    = is_trivial<T>::value;
+  template <class T> constexpr bool is_trivially_copyable_v
+    = is_trivially_copyable<T>::value;
+  template <class T> constexpr bool is_standard_layout_v
+    = is_standard_layout<T>::value;
+  template <class T> constexpr bool is_pod_v
+    = is_pod<T>::value;
+  template <class T> constexpr bool is_literal_type_v
+    = is_literal_type<T>::value;
+  template <class T> constexpr bool is_empty_v
+    = is_empty<T>::value;
+  template <class T> constexpr bool is_polymorphic_v
+    = is_polymorphic<T>::value;
+  template <class T> constexpr bool is_abstract_v
+    = is_abstract<T>::value;
+  template <class T> constexpr bool is_final_v
+    = is_final<T>::value;
+  template <class T> constexpr bool is_signed_v
+    = is_signed<T>::value;
+  template <class T> constexpr bool is_unsigned_v
+    = is_unsigned<T>::value;
+  template <class T, class... Args> constexpr bool is_constructible_v
+    = is_constructible<T, Args...>::value;
+  template <class T> constexpr bool is_default_constructible_v
+    = is_default_constructible<T>::value;
+  template <class T> constexpr bool is_copy_constructible_v
+    = is_copy_constructible<T>::value;
+  template <class T> constexpr bool is_move_constructible_v
+    = is_move_constructible<T>::value;
+  template <class T, class U> constexpr bool is_assignable_v
+    = is_assignable<T, U>::value;
+  template <class T> constexpr bool is_copy_assignable_v
+    = is_copy_assignable<T>::value;
+  template <class T> constexpr bool is_move_assignable_v
+    = is_move_assignable<T>::value;
+  template <class T> constexpr bool is_destructible_v
+    = is_destructible<T>::value;
+  template <class T, class... Args> constexpr bool is_trivially_constructible_v
+    = is_trivially_constructible<T, Args...>::value;
+  template <class T> constexpr bool is_trivially_default_constructible_v
+    = is_trivially_default_constructible<T>::value;
+  template <class T> constexpr bool is_trivially_copy_constructible_v
+    = is_trivially_copy_constructible<T>::value;
+  template <class T> constexpr bool is_trivially_move_constructible_v
+    = is_trivially_move_constructible<T>::value;
+  template <class T, class U> constexpr bool is_trivially_assignable_v
+    = is_trivially_assignable<T, U>::value;
+  template <class T> constexpr bool is_trivially_copy_assignable_v
+    = is_trivially_copy_assignable<T>::value;
+  template <class T> constexpr bool is_trivially_move_assignable_v
+    = is_trivially_move_assignable<T>::value;
+  template <class T> constexpr bool is_trivially_destructible_v
+    = is_trivially_destructible<T>::value;
+  template <class T, class... Args> constexpr bool is_nothrow_constructible_v
+    = is_nothrow_constructible<T, Args...>::value;
+  template <class T> constexpr bool is_nothrow_default_constructible_v
+    = is_nothrow_default_constructible<T>::value;
+  template <class T> constexpr bool is_nothrow_copy_constructible_v
+    = is_nothrow_copy_constructible<T>::value;
+  template <class T> constexpr bool is_nothrow_move_constructible_v
+    = is_nothrow_move_constructible<T>::value;
+  template <class T, class U> constexpr bool is_nothrow_assignable_v
+    = is_nothrow_assignable<T, U>::value;
+  template <class T> constexpr bool is_nothrow_copy_assignable_v
+    = is_nothrow_copy_assignable<T>::value;
+  template <class T> constexpr bool is_nothrow_move_assignable_v
+    = is_nothrow_move_assignable<T>::value;
+  template <class T> constexpr bool is_nothrow_destructible_v
+    = is_nothrow_destructible<T>::value;
+  template <class T> constexpr bool has_virtual_destructor_v
+    = has_virtual_destructor<T>::value;
+
+  // See C++14 20.10.5, type property queries
+  template <class T> constexpr size_t alignment_of_v
+    = alignment_of<T>::value;
+  template <class T> constexpr size_t rank_v
+    = rank<T>::value;
+  template <class T, unsigned I = 0> constexpr size_t extent_v
+    = extent<T, I>::value;
+
+  // See C++14 20.10.6, type relations
+  template <class T, class U> constexpr bool is_same_v
+    = is_same<T, U>::value;
+  template <class Base, class Derived> constexpr bool is_base_of_v
+    = is_base_of<Base, Derived>::value;
+  template <class From, class To> constexpr bool is_convertible_v
+    = is_convertible<From, To>::value;
+
+  // 3.3.2, Other type transformations
+  template <class> class invocation_type; // not defined
+  template <class F, class... ArgTypes> class invocation_type<F(ArgTypes...)>;
+  template <class> class raw_invocation_type; // not defined
+  template <class F, class... ArgTypes> class raw_invocation_type<F(ArgTypes...)>;
+
+  template <class T>
+    using invocation_type_t = typename invocation_type<T>::type;
+  template <class T>
+    using raw_invocation_type_t = typename raw_invocation_type<T>::type;
+
+} // namespace fundamentals_v1
+} // namespace experimental
+} // namespace std
+
+ */
+
+#include <experimental/__config>
+
+#if _LIBCPP_STD_VER > 11
+
+#include <type_traits>
+
+_LIBCPP_BEGIN_NAMESPACE_LFTS
+
+#if __has_feature(cxx_variable_templates)
+
+// C++14 20.10.4.1, primary type categories
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_void_v
+    = is_void<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_null_pointer_v
+    = is_null_pointer<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_integral_v
+    = is_integral<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_floating_point_v
+    = is_floating_point<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_array_v
+    = is_array<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_pointer_v
+    = is_pointer<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_lvalue_reference_v
+    = is_lvalue_reference<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_rvalue_reference_v
+    = is_rvalue_reference<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_object_pointer_v
+    = is_member_object_pointer<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_function_pointer_v
+    = is_member_function_pointer<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_enum_v
+    = is_enum<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_union_v
+    = is_union<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_class_v
+    = is_class<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_function_v
+    = is_function<_Tp>::value;
+
+// C++14 20.10.4.2,  composite type categories
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_reference_v
+    = is_reference<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_arithmetic_v
+    = is_arithmetic<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_fundamental_v
+    = is_fundamental<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_object_v
+    = is_object<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_scalar_v
+    = is_scalar<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_compound_v
+    = is_compound<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_pointer_v
+    = is_member_pointer<_Tp>::value;
+
+// C++14 20.10.4.3, type properties
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_const_v
+    = is_const<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_volatile_v
+    = is_volatile<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivial_v
+    = is_trivial<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copyable_v
+    = is_trivially_copyable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_standard_layout_v
+    = is_standard_layout<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_pod_v
+    = is_pod<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_literal_type_v
+    = is_literal_type<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_empty_v
+    = is_empty<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_polymorphic_v
+    = is_polymorphic<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_abstract_v
+    = is_abstract<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_final_v
+    = is_final<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_signed_v
+    = is_signed<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_unsigned_v
+    = is_unsigned<_Tp>::value;
+
+template <class _Tp, class ..._Ts> _LIBCPP_CONSTEXPR bool is_constructible_v
+    = is_constructible<_Tp, _Ts...>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_default_constructible_v
+    = is_default_constructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_constructible_v
+    = is_copy_constructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_constructible_v
+    = is_move_constructible<_Tp>::value;
+
+template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_assignable_v
+    = is_assignable<_Tp, _Up>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_assignable_v
+    = is_copy_assignable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_assignable_v
+    = is_move_assignable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_destructible_v
+    = is_destructible<_Tp>::value;
+
+template <class _Tp, class ..._Ts> _LIBCPP_CONSTEXPR bool is_trivially_constructible_v
+    = is_trivially_constructible<_Tp, _Ts...>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_default_constructible_v
+    = is_trivially_default_constructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_constructible_v
+    = is_trivially_copy_constructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_constructible_v
+    = is_trivially_move_constructible<_Tp>::value;
+
+template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_trivially_assignable_v
+    = is_trivially_assignable<_Tp, _Up>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_assignable_v
+    = is_trivially_copy_assignable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_assignable_v
+    = is_trivially_move_assignable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_destructible_v
+    = is_trivially_destructible<_Tp>::value;
+
+template <class _Tp, class ..._Ts> _LIBCPP_CONSTEXPR bool is_nothrow_constructible_v
+    = is_nothrow_constructible<_Tp, _Ts...>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_default_constructible_v
+    = is_nothrow_default_constructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_constructible_v
+    = is_nothrow_copy_constructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_move_constructible_v
+    = is_nothrow_move_constructible<_Tp>::value;
+
+template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_nothrow_assignable_v
+    = is_nothrow_assignable<_Tp, _Up>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_assignable_v
+    = is_nothrow_copy_assignable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_move_assignable_v
+    = is_nothrow_move_assignable<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_destructible_v
+    = is_nothrow_destructible<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR bool has_virtual_destructor_v
+    = has_virtual_destructor<_Tp>::value;
+
+// C++14 20.10.5, type properties queries
+
+template <class _Tp> _LIBCPP_CONSTEXPR size_t alignment_of_v
+    = alignment_of<_Tp>::value;
+
+template <class _Tp> _LIBCPP_CONSTEXPR size_t rank_v
+    = rank<_Tp>::value;
+
+template <class _Tp, unsigned _Id = 0> _LIBCPP_CONSTEXPR size_t extent_v
+    = extent<_Tp, _Id>::value;
+
+// C++14 20.10.6, type relations
+
+template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_same_v
+    = is_same<_Tp, _Up>::value;
+
+template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_base_of_v
+    = is_base_of<_Tp, _Up>::value;
+
+template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_convertible_v
+    = is_convertible<_Tp, _Up>::value;
+
+// 3.3.2, Other type transformations
+/*
+template <class>
+class _LIBCPP_TYPE_VIS_ONLY raw_invocation_type;
+
+template <class _Fn, class ..._Args>
+class _LIBCPP_TYPE_VIS_ONLY raw_invocation_type<_Fn(_Args...)>;
+
+template <class>
+class _LIBCPP_TYPE_VIS_ONLY invokation_type;
+
+template <class _Fn, class ..._Args>
+class _LIBCPP_TYPE_VIS_ONLY invokation_type<_Fn(_Args...)>;
+
+template <class _Tp>
+using invokation_type_t = typename invokation_type<_Tp>::type;
+
+template <class _Tp>
+using raw_invocation_type_t = typename raw_invocation_type<_Tp>::type;
+*/
+
+#endif /* __has_feature(cxx_variable_templates) */
+
+_LIBCPP_END_NAMESPACE_LFTS
+
+#endif /* _LIBCPP_STD_VER > 11 */
+
+#endif /* _LIBCPP_EXPERIMENTAL_TYPE_TRAITS */

test/experimental/utilities/meta/meta.type.synop/includes.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+# ifndef _LIBCPP_TYPE_TRAITS
+#   error "<experimental/type_traits> must include <type_traits>"
+# endif
+#endif
+
+int main()
+{
+}

test/experimental/utilities/meta/meta.type.synop/meta.rel.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct base_type {};
+struct derived_type : base_type {};
+
+int main()
+{
+    {
+        typedef int T;
+        typedef int U;
+        static_assert(ex::is_same_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_same_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_same_v<T, U> == std::is_same<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        typedef long U;
+        static_assert(!ex::is_same_v<T, U>, "");
+        static_assert(ex::is_same_v<T, U> == std::is_same<T, U>::value, "");
+    }
+    {
+        typedef base_type T;
+        typedef derived_type U;
+        static_assert(ex::is_base_of_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_base_of_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_base_of_v<T, U> == std::is_base_of<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        typedef int U;
+        static_assert(!ex::is_base_of_v<T, U>, "");
+        static_assert(ex::is_base_of_v<T, U> == std::is_base_of<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        typedef long U;
+        static_assert(ex::is_convertible_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_convertible_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_convertible_v<T, U> == std::is_convertible<T, U>::value, "");
+    }
+    {
+        typedef void T;
+        typedef int U;
+        static_assert(!ex::is_convertible_v<T, U>, "");
+        static_assert(ex::is_convertible_v<T, U> == std::is_convertible<T, U>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

test/experimental/utilities/meta/meta.type.synop/meta.unary.cat.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct class_type {};
+enum enum_type {};
+union union_type {};
+
+int main()
+{
+    {
+        typedef void T;
+        static_assert(ex::is_void_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_void_v<T>), const bool>::value, "");
+        static_assert(ex::is_void_v<T> == std::is_void<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_void_v<T>, "");
+        static_assert(ex::is_void_v<T> == std::is_void<T>::value, "");
+    }
+    {
+        typedef decltype(nullptr) T;
+        static_assert(ex::is_null_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_null_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_null_pointer_v<T> == std::is_null_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_null_pointer_v<T>, "");
+        static_assert(ex::is_null_pointer_v<T> == std::is_null_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_integral_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_integral_v<T>), const bool>::value, "");
+        static_assert(ex::is_integral_v<T> == std::is_integral<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_integral_v<T>, "");
+        static_assert(ex::is_integral_v<T> == std::is_integral<T>::value, "");
+    }
+    {
+        typedef float T;
+        static_assert(ex::is_floating_point_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_floating_point_v<T>), const bool>::value, "");
+        static_assert(ex::is_floating_point_v<T> == std::is_floating_point<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_floating_point_v<T>, "");
+        static_assert(ex::is_floating_point_v<T> == std::is_floating_point<T>::value, "");
+    }
+    {
+        typedef int(T)[42];
+        static_assert(ex::is_array_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_array_v<T>), const bool>::value, "");
+        static_assert(ex::is_array_v<T> == std::is_array<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_array_v<T>, "");
+        static_assert(ex::is_array_v<T> == std::is_array<T>::value, "");
+    }
+    {
+        typedef void* T;
+        static_assert(ex::is_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_pointer_v<T> == std::is_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_pointer_v<T>, "");
+        static_assert(ex::is_pointer_v<T> == std::is_pointer<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(ex::is_lvalue_reference_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_lvalue_reference_v<T>), const bool>::value, "");
+        static_assert(ex::is_lvalue_reference_v<T> == std::is_lvalue_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_lvalue_reference_v<T>, "");
+        static_assert(ex::is_lvalue_reference_v<T> == std::is_lvalue_reference<T>::value, "");
+    }
+    {
+        typedef int && T;
+        static_assert(ex::is_rvalue_reference_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_rvalue_reference_v<T>), const bool>::value, "");
+        static_assert(ex::is_rvalue_reference_v<T> == std::is_rvalue_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_rvalue_reference_v<T>, "");
+        static_assert(ex::is_rvalue_reference_v<T> == std::is_rvalue_reference<T>::value, "");
+    }
+    {
+        typedef int class_type::*T;
+        static_assert(ex::is_member_object_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_member_object_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_member_object_pointer_v<T> == std::is_member_object_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_member_object_pointer_v<T>, "");
+        static_assert(ex::is_member_object_pointer_v<T> == std::is_member_object_pointer<T>::value, "");
+    }
+    {
+        typedef void(class_type::*T)();
+        static_assert(ex::is_member_function_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_member_function_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_member_function_pointer_v<T> == std::is_member_function_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_member_function_pointer_v<T>, "");
+        static_assert(ex::is_member_function_pointer_v<T> == std::is_member_function_pointer<T>::value, "");
+    }
+    {
+        typedef enum_type T;
+        static_assert(ex::is_enum_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_enum_v<T>), const bool>::value, "");
+        static_assert(ex::is_enum_v<T> == std::is_enum<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_enum_v<T>, "");
+        static_assert(ex::is_enum_v<T> == std::is_enum<T>::value, "");
+    }
+    {
+        typedef union_type T;
+        static_assert(ex::is_union_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_union_v<T>), const bool>::value, "");
+        static_assert(ex::is_union_v<T> == std::is_union<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_union_v<T>, "");
+        static_assert(ex::is_union_v<T> == std::is_union<T>::value, "");
+    }
+    {
+        typedef class_type T;
+        static_assert(ex::is_class_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_class_v<T>), const bool>::value, "");
+        static_assert(ex::is_class_v<T> == std::is_class<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_class_v<T>, "");
+        static_assert(ex::is_class_v<T> == std::is_class<T>::value, "");
+    }
+    {
+        typedef void(T)();
+        static_assert(ex::is_function_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_function_v<T>), const bool>::value, "");
+        static_assert(ex::is_function_v<T> == std::is_function<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_function_v<T>, "");
+        static_assert(ex::is_function_v<T> == std::is_function<T>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

test/experimental/utilities/meta/meta.type.synop/meta.unary.comp.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct class_type {};
+
+int main()
+{
+    {
+        typedef int & T;
+        static_assert(ex::is_reference_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_reference_v<T>), const bool>::value, "");
+        static_assert(ex::is_reference_v<T> == std::is_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_reference_v<T>, "");
+        static_assert(ex::is_reference_v<T> == std::is_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_arithmetic_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_arithmetic_v<T>), const bool>::value, "");
+        static_assert(ex::is_arithmetic_v<T> == std::is_arithmetic<T>::value, "");
+    }
+    {
+        typedef void* T;
+        static_assert(!ex::is_arithmetic_v<T>, "");
+        static_assert(ex::is_arithmetic_v<T> == std::is_arithmetic<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_fundamental_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_fundamental_v<T>), const bool>::value, "");
+        static_assert(ex::is_fundamental_v<T> == std::is_fundamental<T>::value, "");
+    }
+    {
+        typedef class_type T;
+        static_assert(!ex::is_fundamental_v<T>, "");
+        static_assert(ex::is_fundamental_v<T> == std::is_fundamental<T>::value, "");
+    }
+    {
+        typedef class_type T;
+        static_assert(ex::is_object_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_object_v<T>), const bool>::value, "");
+        static_assert(ex::is_object_v<T> == std::is_object<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_object_v<T>, "");
+        static_assert(ex::is_object_v<T> == std::is_object<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_scalar_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_scalar_v<T>), const bool>::value, "");
+        static_assert(ex::is_scalar_v<T> == std::is_scalar<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_scalar_v<T>, "");
+        static_assert(ex::is_scalar_v<T> == std::is_scalar<T>::value, "");
+    }
+    {
+        typedef void* T;
+        static_assert(ex::is_compound_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_compound_v<T>), const bool>::value, "");
+        static_assert(ex::is_compound_v<T> == std::is_compound<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_compound_v<T>, "");
+        static_assert(ex::is_compound_v<T> == std::is_compound<T>::value, "");
+    }
+    {
+        typedef int class_type::*T;
+        static_assert(ex::is_member_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_member_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_member_pointer_v<T> == std::is_member_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_member_pointer_v<T>, "");
+        static_assert(ex::is_member_pointer_v<T> == std::is_member_pointer<T>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

test/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct non_literal_type { non_literal_type() {} };
+struct empty_type {};
+
+struct polymorphic_type
+{
+    virtual void foo() {}
+};
+
+struct abstract_type
+{
+    virtual void foo() = 0;
+};
+
+struct final_type final {};
+
+struct virtual_dtor_type
+{
+    virtual ~virtual_dtor_type() {}
+};
+
+void type_properties_test()
+{
+    {
+        typedef const int T;
+        static_assert(ex::is_const_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_const_v<T>), const bool>::value, "");
+        static_assert(ex::is_const_v<T> == std::is_const<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_const_v<T>, "");
+        static_assert(ex::is_const_v<T> == std::is_const<T>::value, "");
+    }
+    {
+        typedef volatile int T;
+        static_assert(ex::is_volatile_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_volatile_v<T>), const bool>::value, "");
+        static_assert(ex::is_volatile_v<T> == std::is_volatile<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_volatile_v<T>, "");
+        static_assert(ex::is_volatile_v<T> == std::is_volatile<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivial_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivial_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivial_v<T> == std::is_trivial<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_trivial_v<T>, "");
+        static_assert(ex::is_trivial_v<T> == std::is_trivial<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_copyable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_copyable_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_copyable_v<T> == std::is_trivially_copyable<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_trivially_copyable_v<T>, "");
+        static_assert(ex::is_trivially_copyable_v<T> == std::is_trivially_copyable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_standard_layout_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_standard_layout_v<T>), const bool>::value, "");
+        static_assert(ex::is_standard_layout_v<T> == std::is_standard_layout<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_standard_layout_v<T>, "");
+        static_assert(ex::is_standard_layout_v<T> == std::is_standard_layout<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_pod_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_pod_v<T>), const bool>::value, "");
+        static_assert(ex::is_pod_v<T> == std::is_pod<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_pod_v<T>, "");
+        static_assert(ex::is_pod_v<T> == std::is_pod<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_literal_type_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_literal_type_v<T>), const bool>::value, "");
+        static_assert(ex::is_literal_type_v<T> == std::is_literal_type<T>::value, "");
+    }
+    {
+        typedef non_literal_type T;
+        static_assert(!ex::is_literal_type_v<T>, "");
+        static_assert(ex::is_literal_type_v<T> == std::is_literal_type<T>::value, "");
+    }
+    {
+        typedef empty_type T;
+        static_assert(ex::is_empty_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_empty_v<T>), const bool>::value, "");
+        static_assert(ex::is_empty_v<T> == std::is_empty<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_empty_v<T>, "");
+        static_assert(ex::is_empty_v<T> == std::is_empty<T>::value, "");
+    }
+    {
+        typedef polymorphic_type T;
+        static_assert(ex::is_polymorphic_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_polymorphic_v<T>), const bool>::value, "");
+        static_assert(ex::is_polymorphic_v<T> == std::is_polymorphic<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_polymorphic_v<T>, "");
+        static_assert(ex::is_polymorphic_v<T> == std::is_polymorphic<T>::value, "");
+    }
+    {
+        typedef abstract_type T;
+        static_assert(ex::is_abstract_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_abstract_v<T>), const bool>::value, "");
+        static_assert(ex::is_abstract_v<T> == std::is_abstract<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_abstract_v<T>, "");
+        static_assert(ex::is_abstract_v<T> == std::is_abstract<T>::value, "");
+    }
+    {
+        typedef final_type T;
+        static_assert(ex::is_final_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_final_v<T>), const bool>::value, "");
+        static_assert(ex::is_final_v<T> == std::is_final<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_final_v<T>, "");
+        static_assert(ex::is_final_v<T> == std::is_final<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_signed_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_signed_v<T>), const bool>::value, "");
+        static_assert(ex::is_signed_v<T> == std::is_signed<T>::value, "");
+    }
+    {
+        typedef unsigned T;
+        static_assert(!ex::is_signed_v<T>, "");
+        static_assert(ex::is_signed_v<T> == std::is_signed<T>::value, "");
+    }
+    {
+        typedef unsigned T;
+        static_assert(ex::is_unsigned_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_unsigned_v<T>), const bool>::value, "");
+        static_assert(ex::is_unsigned_v<T> == std::is_unsigned<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_unsigned_v<T>, "");
+        static_assert(ex::is_unsigned_v<T> == std::is_unsigned<T>::value, "");
+    }
+}
+
+void is_constructible_and_assignable_test()
+{
+    {
+        typedef int T;
+        static_assert(ex::is_constructible_v<T, int>, "");
+        static_assert(std::is_same<decltype(ex::is_constructible_v<T, int>), const bool>::value, "");
+        static_assert(ex::is_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_constructible_v<T, int>, "");
+        static_assert(ex::is_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_default_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_default_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_default_constructible_v<T>, "");
+        static_assert(ex::is_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_copy_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_copy_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_copy_constructible_v<T>, "");
+        static_assert(ex::is_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_move_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_move_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_move_constructible_v<T>, "");
+        static_assert(ex::is_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef int U;
+        static_assert(ex::is_assignable_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_assignable_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef void U;
+        static_assert(!ex::is_assignable_v<T, U>, "");
+        static_assert(ex::is_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_copy_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_copy_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_copy_assignable_v<T>, "");
+        static_assert(ex::is_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_move_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_move_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_move_assignable_v<T>, "");
+        static_assert(ex::is_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_destructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_destructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_destructible_v<T>, "");
+        static_assert(ex::is_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+}
+
+void is_trivially_constructible_and_assignable_test()
+{
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_constructible_v<T, int>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_constructible_v<T, int>), const bool>::value, "");
+        static_assert(ex::is_trivially_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_constructible_v<T, int>, "");
+        static_assert(ex::is_trivially_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_default_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_default_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_trivially_default_constructible_v<T>, "");
+        static_assert(ex::is_trivially_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_copy_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_copy_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_copy_constructible_v<T>, "");
+        static_assert(ex::is_trivially_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_move_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_move_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_move_constructible_v<T>, "");
+        static_assert(ex::is_trivially_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef int U;
+        static_assert(ex::is_trivially_assignable_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_assignable_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_trivially_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef void U;
+        static_assert(!ex::is_trivially_assignable_v<T, U>, "");
+        static_assert(ex::is_trivially_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_copy_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_copy_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_copy_assignable_v<T>, "");
+        static_assert(ex::is_trivially_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_move_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_move_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_move_assignable_v<T>, "");
+        static_assert(ex::is_trivially_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_destructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_destructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_destructible_v<T>, "");
+        static_assert(ex::is_trivially_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+}
+
+
+
+void is_nothrow_constructible_and_assignable_test()
+{
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_constructible_v<T, int>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_constructible_v<T, int>), const bool>::value, "");
+        static_assert(ex::is_nothrow_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_constructible_v<T, int>, "");
+        static_assert(ex::is_nothrow_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_default_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_default_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_nothrow_default_constructible_v<T>, "");
+        static_assert(ex::is_nothrow_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_copy_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_copy_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_copy_constructible_v<T>, "");
+        static_assert(ex::is_nothrow_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_move_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_move_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_move_constructible_v<T>, "");
+        static_assert(ex::is_nothrow_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef int U;
+        static_assert(ex::is_nothrow_assignable_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_assignable_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_nothrow_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef void U;
+        static_assert(!ex::is_nothrow_assignable_v<T, U>, "");
+        static_assert(ex::is_nothrow_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_copy_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_copy_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_copy_assignable_v<T>, "");
+        static_assert(ex::is_nothrow_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_move_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_move_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_move_assignable_v<T>, "");
+        static_assert(ex::is_nothrow_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_destructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_destructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_destructible_v<T>, "");
+        static_assert(ex::is_nothrow_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+}
+
+int main()
+{
+    type_properties_test();
+    is_constructible_and_assignable_test();
+    is_trivially_constructible_and_assignable_test();
+    is_nothrow_constructible_and_assignable_test();
+    {
+        typedef virtual_dtor_type T;
+        static_assert(ex::has_virtual_destructor_v<T>, "");
+        static_assert(std::is_same<decltype(ex::has_virtual_destructor_v<T>), const bool>::value, "");
+        static_assert(ex::has_virtual_destructor_v<T> == std::has_virtual_destructor<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::has_virtual_destructor_v<T>, "");
+        static_assert(ex::has_virtual_destructor_v<T> == std::has_virtual_destructor<T>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

test/experimental/utilities/meta/meta.type.synop/meta.unary.prop.query.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+int main()
+{
+    {
+        typedef char T;
+        static_assert(ex::alignment_of_v<T> == 1, "");
+        static_assert(std::is_same<decltype(ex::alignment_of_v<T>), const std::size_t>::value, "");
+        static_assert(ex::alignment_of_v<T> == std::alignment_of<T>::value, "");
+    }
+    {
+        typedef char(T)[1][1][1];
+        static_assert(ex::rank_v<T> == 3, "");
+        static_assert(std::is_same<decltype(ex::rank_v<T>), const std::size_t>::value, "");
+        static_assert(ex::rank_v<T> == std::rank<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(ex::rank_v<T> == 0, "");
+        static_assert(ex::rank_v<T> == std::rank<T>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T> == 2, "");
+        static_assert(std::is_same<decltype(ex::extent_v<T>), const std::size_t>::value, "");
+        static_assert(ex::extent_v<T> == std::extent<T>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T, 0> == 2, "");
+        static_assert(ex::extent_v<T, 0> == std::extent<T, 0>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T, 1> == 3, "");
+        static_assert(ex::extent_v<T, 1> == std::extent<T, 1>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T, 5> == 0, "");
+        static_assert(ex::extent_v<T, 5> == std::extent<T, 5>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(ex::extent_v<T, 0> == 0, "");
+        static_assert(ex::extent_v<T, 0> == std::extent<T, 0>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

test/experimental/utilities/meta/version.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}