| // { dg-options "-std=gnu++11" } |
| // { dg-do compile } |
| |
| // Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // 20.7.1 Class template unique_ptr [unique.ptr] |
| |
| #include <memory> |
| |
| struct A { virtual ~A() = default; }; |
| |
| struct B : A { }; |
| |
| // Construction from objects with different cv-qualification |
| |
| void |
| test01() |
| { |
| std::unique_ptr<const A> cA(new A); |
| std::unique_ptr<volatile A> vA(new A); |
| std::unique_ptr<const volatile A> cvA(new A); |
| } |
| |
| void |
| test02() |
| { |
| std::unique_ptr<const A> cB(new B); |
| std::unique_ptr<volatile A> vB(new B); |
| std::unique_ptr<const volatile A> cvB(new B); |
| } |
| |
| void |
| test03() |
| { |
| std::unique_ptr<A> upA; |
| |
| std::unique_ptr<const A> cA(std::move(upA)); |
| std::unique_ptr<volatile A> vA(std::move(upA)); |
| std::unique_ptr<const volatile A> cvA(std::move(upA)); |
| } |
| |
| void |
| test04() |
| { |
| std::unique_ptr<B> upB; |
| |
| std::unique_ptr<const A> cA(std::move(upB)); |
| std::unique_ptr<volatile A> vA(std::move(upB)); |
| std::unique_ptr<const volatile A> cvA(std::move(upB)); |
| } |
| |
| void |
| test05() |
| { |
| std::unique_ptr<const A[]> cA(new A[1]); |
| std::unique_ptr<volatile A[]> vA(new A[1]); |
| std::unique_ptr<const volatile A[]> cvA(new A[1]); |
| } |
| |
| void |
| test06() |
| { |
| std::unique_ptr<A[]> upA; |
| |
| std::unique_ptr<const A[]> cA(std::move(upA)); |
| std::unique_ptr<volatile A[]> vA(std::move(upA)); |
| std::unique_ptr<const volatile A[]> cvA(std::move(upA)); |
| } |
| |
| struct A_pointer { operator A*() const { return nullptr; } }; |
| |
| void |
| test07() |
| { |
| // Allow conversions from user-defined pointer-like types |
| A_pointer p; |
| std::unique_ptr<A[]> upA(p); |
| std::unique_ptr<const A[]> cA(p); |
| std::unique_ptr<volatile A[]> vA(p); |
| std::unique_ptr<const volatile A[]> cvA(p); |
| } |
| |
| template<typename T> |
| struct deleter |
| { |
| deleter() = default; |
| template<typename U> |
| deleter(const deleter<U>) { } |
| typedef T pointer; |
| void operator()(T) const { } |
| }; |
| |
| void |
| test08() |
| { |
| // Allow conversions from user-defined pointer-like types |
| std::unique_ptr<B[], deleter<A_pointer>> p; |
| std::unique_ptr<A[], deleter<A*>> upA(std::move(p)); |
| } |
| |