| 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | // <memory> |
| 10 | |
| 11 | // shared_ptr |
| 12 | |
| 13 | // explicit operator bool() const; |
| 14 | |
| 15 | #include <memory> |
| 16 | #include <cassert> |
| 17 | #include <type_traits> |
| 18 | |
| 19 | #include "test_macros.h" |
| 20 | |
| 21 | struct A { |
| 22 | int a; |
| 23 | virtual ~A() {} |
| 24 | }; |
| 25 | struct B : A {}; |
| 26 | |
| 27 | int main(int, char**) |
| 28 | { |
| 29 | static_assert(std::is_constructible<bool, std::shared_ptr<A> >::value, "" ); |
| 30 | static_assert(!std::is_convertible<std::shared_ptr<A>, bool>::value, "" ); |
| 31 | |
| 32 | { |
| 33 | const std::shared_ptr<int> p(new int(32)); |
| 34 | assert(p); |
| 35 | } |
| 36 | { |
| 37 | const std::shared_ptr<int> p; |
| 38 | assert(!p); |
| 39 | } |
| 40 | #if !defined(TEST_HAS_NO_RTTI) |
| 41 | { |
| 42 | std::shared_ptr<A> basePtr = std::make_shared<B>(); |
| 43 | std::shared_ptr<B> sp = std::dynamic_pointer_cast<B>(r: basePtr); |
| 44 | assert(sp); |
| 45 | } |
| 46 | #endif |
| 47 | |
| 48 | return 0; |
| 49 | } |
| 50 | |