| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // template <class T, class... Args> |
| // struct is_nothrow_constructible; |
| |
| #include <type_traits> |
| #include "test_macros.h" |
| |
| template <class T> |
| void test_is_nothrow_constructible() |
| { |
| static_assert(( std::is_nothrow_constructible<T>::value), ""); |
| #if TEST_STD_VER > 14 |
| static_assert(( std::is_nothrow_constructible_v<T>), ""); |
| #endif |
| } |
| |
| template <class T, class A0> |
| void test_is_nothrow_constructible() |
| { |
| static_assert(( std::is_nothrow_constructible<T, A0>::value), ""); |
| #if TEST_STD_VER > 14 |
| static_assert(( std::is_nothrow_constructible_v<T, A0>), ""); |
| #endif |
| } |
| |
| template <class T> |
| void test_is_not_nothrow_constructible() |
| { |
| static_assert((!std::is_nothrow_constructible<T>::value), ""); |
| #if TEST_STD_VER > 14 |
| static_assert((!std::is_nothrow_constructible_v<T>), ""); |
| #endif |
| } |
| |
| template <class T, class A0> |
| void test_is_not_nothrow_constructible() |
| { |
| static_assert((!std::is_nothrow_constructible<T, A0>::value), ""); |
| #if TEST_STD_VER > 14 |
| static_assert((!std::is_nothrow_constructible_v<T, A0>), ""); |
| #endif |
| } |
| |
| template <class T, class A0, class A1> |
| void test_is_not_nothrow_constructible() |
| { |
| static_assert((!std::is_nothrow_constructible<T, A0, A1>::value), ""); |
| #if TEST_STD_VER > 14 |
| static_assert((!std::is_nothrow_constructible_v<T, A0, A1>), ""); |
| #endif |
| } |
| |
| class Empty |
| { |
| }; |
| |
| class NotEmpty |
| { |
| virtual ~NotEmpty(); |
| }; |
| |
| union Union {}; |
| |
| struct bit_zero |
| { |
| int : 0; |
| }; |
| |
| class Abstract |
| { |
| virtual ~Abstract() = 0; |
| }; |
| |
| struct A |
| { |
| A(const A&); |
| }; |
| |
| struct C |
| { |
| C(C&); // not const |
| void operator=(C&); // not const |
| }; |
| |
| #if TEST_STD_VER >= 11 |
| struct Tuple { |
| Tuple(Empty&&) noexcept {} |
| }; |
| #endif |
| |
| int main() |
| { |
| test_is_nothrow_constructible<int> (); |
| test_is_nothrow_constructible<int, const int&> (); |
| test_is_nothrow_constructible<Empty> (); |
| test_is_nothrow_constructible<Empty, const Empty&> (); |
| |
| test_is_not_nothrow_constructible<A, int> (); |
| test_is_not_nothrow_constructible<A, int, double> (); |
| test_is_not_nothrow_constructible<A> (); |
| test_is_not_nothrow_constructible<C> (); |
| #if TEST_STD_VER >= 11 |
| test_is_nothrow_constructible<Tuple &&, Empty> (); // See bug #19616. |
| |
| static_assert(!std::is_constructible<Tuple&, Empty>::value, ""); |
| test_is_not_nothrow_constructible<Tuple &, Empty> (); // See bug #19616. |
| #endif |
| } |