forked from OSchip/llvm-project
114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// type_traits
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// XFAIL: apple-clang-6.0
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// The Apple-6 compiler gets is_constructible<void ()> wrong.
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// template <class T, class... Args>
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// struct is_constructible;
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#include <type_traits>
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#include "test_macros.h"
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struct A
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{
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explicit A(int);
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A(int, double);
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#if __has_feature(cxx_access_control_sfinae)
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private:
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#endif
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A(char);
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};
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class Abstract
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{
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virtual void foo() = 0;
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};
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class AbstractDestructor
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{
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virtual ~AbstractDestructor() = 0;
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};
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template <class T>
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void test_is_constructible()
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{
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static_assert( (std::is_constructible<T>::value), "");
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#if TEST_STD_VER > 14
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static_assert( std::is_constructible_v<T>, "");
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#endif
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}
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template <class T, class A0>
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void test_is_constructible()
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{
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static_assert(( std::is_constructible<T, A0>::value), "");
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#if TEST_STD_VER > 14
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static_assert(( std::is_constructible_v<T, A0>), "");
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#endif
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}
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template <class T, class A0, class A1>
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void test_is_constructible()
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{
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static_assert(( std::is_constructible<T, A0, A1>::value), "");
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#if TEST_STD_VER > 14
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static_assert(( std::is_constructible_v<T, A0, A1>), "");
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#endif
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}
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template <class T>
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void test_is_not_constructible()
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{
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static_assert((!std::is_constructible<T>::value), "");
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#if TEST_STD_VER > 14
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static_assert((!std::is_constructible_v<T>), "");
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#endif
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}
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template <class T, class A0>
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void test_is_not_constructible()
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{
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static_assert((!std::is_constructible<T, A0>::value), "");
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#if TEST_STD_VER > 14
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static_assert((!std::is_constructible_v<T, A0>), "");
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#endif
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}
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int main()
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{
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test_is_constructible<int> ();
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test_is_constructible<int, const int> ();
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test_is_constructible<A, int> ();
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test_is_constructible<A, int, double> ();
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test_is_constructible<int&, int&> ();
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test_is_not_constructible<A> ();
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#if __has_feature(cxx_access_control_sfinae)
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test_is_not_constructible<A, char> ();
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#else
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test_is_constructible<A, char> ();
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#endif
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test_is_not_constructible<A, void> ();
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test_is_not_constructible<void> ();
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test_is_not_constructible<int&> ();
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test_is_not_constructible<Abstract> ();
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test_is_not_constructible<AbstractDestructor> ();
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// LWG 2560 -- postpone this test until bots updated
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// test_is_not_constructible<void()> ();
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// #if TEST_STD_VERS > 11
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// test_is_not_constructible<void() const> ();
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// test_is_not_constructible<void() volatile> ();
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// test_is_not_constructible<void() &> ();
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// test_is_not_constructible<void() &&> ();
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// #endif
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}
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