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Differential D135548 Diff 468702 libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.cast/const_pointer_cast.pass.cpp
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libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.cast/const_pointer_cast.pass.cpp
| //===----------------------------------------------------------------------===// | //===----------------------------------------------------------------------===// | |||||||||
| // | // | |||||||||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |||||||||
| // See https://llvm.org/LICENSE.txt for license information. | // See https://llvm.org/LICENSE.txt for license information. | |||||||||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |||||||||
| // | // | |||||||||
| //===----------------------------------------------------------------------===// | //===----------------------------------------------------------------------===// | |||||||||
| // <memory> | // <memory> | |||||||||
| // shared_ptr | // shared_ptr | |||||||||
| // template<class T, class U> shared_ptr<T> const_pointer_cast(const shared_ptr<U>& r); | // template<class T, class U> shared_ptr<T> const_pointer_cast(const shared_ptr<U>& r) noexcept; | |||||||||
| // template<class T, class U> shared_ptr<T> const_pointer_cast(shared_ptr<U>&& r) noexcept; | ||||||||||
Mordante: Please test whether this is really noexcept. There is a `ASSERT_NOEXCEPT` helper macro.
The… | ||||||||||
| #include <cassert> | ||||||||||
| #include <memory> | #include <memory> | |||||||||
| #include <type_traits> | #include <type_traits> | |||||||||
| #include <cassert> | #include <utility> | |||||||||
| #include "test_macros.h" | #include "test_macros.h" | |||||||||
| struct B | struct B | |||||||||
| { | { | |||||||||
| static int count; | static int count; | |||||||||
| B() {++count;} | B() {++count;} | |||||||||
| Show All 14 Lines | ||||||||||
| }; | }; | |||||||||
| int A::count = 0; | int A::count = 0; | |||||||||
| int main(int, char**) | int main(int, char**) | |||||||||
| { | { | |||||||||
| { | { | |||||||||
| const std::shared_ptr<const A> pA(new A); | const std::shared_ptr<const A> pA(new A); | |||||||||
| ASSERT_NOEXCEPT(std::const_pointer_cast<A>(pA)); | ||||||||||
| std::shared_ptr<A> pB = std::const_pointer_cast<A>(pA); | std::shared_ptr<A> pB = std::const_pointer_cast<A>(pA); | |||||||||
| assert(pB.get() == pA.get()); | assert(pB.get() == pA.get()); | |||||||||
| assert(!pB.owner_before(pA) && !pA.owner_before(pB)); | assert(!pB.owner_before(pA) && !pA.owner_before(pB)); | |||||||||
| } | } | |||||||||
| { | { | |||||||||
| const std::shared_ptr<const A> pA; | const std::shared_ptr<const A> pA; | |||||||||
| std::shared_ptr<A> pB = std::const_pointer_cast<A>(pA); | std::shared_ptr<A> pB = std::const_pointer_cast<A>(pA); | |||||||||
| assert(pB.get() == pA.get()); | assert(pB.get() == pA.get()); | |||||||||
| assert(!pB.owner_before(pA) && !pA.owner_before(pB)); | assert(!pB.owner_before(pA) && !pA.owner_before(pB)); | |||||||||
| } | } | |||||||||
| #if TEST_STD_VER > 14 | #if TEST_STD_VER > 14 | |||||||||
| { | { | |||||||||
| const std::shared_ptr<const A[8]> pA; | const std::shared_ptr<const A[8]> pA; | |||||||||
| std::shared_ptr<A[8]> pB = std::const_pointer_cast<A[8]>(pA); | std::shared_ptr<A[8]> pB = std::const_pointer_cast<A[8]>(pA); | |||||||||
| assert(pB.get() == pA.get()); | assert(pB.get() == pA.get()); | |||||||||
| assert(!pB.owner_before(pA) && !pA.owner_before(pB)); | assert(!pB.owner_before(pA) && !pA.owner_before(pB)); | |||||||||
| } | } | |||||||||
| #endif // TEST_STD_VER > 14 | #endif // TEST_STD_VER > 14 | |||||||||
| #if TEST_STD_VER > 20 | ||||||||||
Or removed, the same for other tests. Mordante: Or removed, the same for other tests. | ||||||||||
philnikUnsubmitted
philnik: | ||||||||||
| { | ||||||||||
| A* pA_raw = new A; | ||||||||||
| std::shared_ptr<const A> pA(pA_raw); | ||||||||||
| ASSERT_NOEXCEPT(std::const_pointer_cast<A>(std::move(pA))); | ||||||||||
| std::shared_ptr<A> pB = std::const_pointer_cast<A>(std::move(pA)); | ||||||||||
| assert(pA.get() == nullptr); | ||||||||||
| assert(pB.get() == pA_raw); | ||||||||||
| assert(pB.use_count() == 1); | ||||||||||
| } | ||||||||||
| #endif // TEST_STD_VER > 20 | ||||||||||
| return 0; | return 0; | |||||||||
| } | } | |||||||||
Please test whether this is really noexcept. There is a ASSERT_NOEXCEPT helper macro.
The same for the other tests.