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// { dg-options "-std=gnu++11" }
// { dg-do compile }
// Copyright (C) 2012-2015 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 { };
// Assignment from objects with different cv-qualification
void
test01()
{
std::unique_ptr<A> upA;
std::unique_ptr<const A> cA;
cA = std::move(upA);
std::unique_ptr<volatile A> vA;
vA = std::move(upA);
std::unique_ptr<const volatile A> cvA;
cvA = std::move(upA);
}
void
test02()
{
std::unique_ptr<B> upB;
std::unique_ptr<const A> cA;
cA = std::move(upB);
std::unique_ptr<volatile A> vA;
vA = std::move(upB);
std::unique_ptr<const volatile A> cvA;
cvA = std::move(upB);
}
void
test03()
{
std::unique_ptr<A[]> upA;
std::unique_ptr<const A[]> cA;
cA = std::move(upA);
std::unique_ptr<volatile A[]> vA;
vA = std::move(upA);
std::unique_ptr<const volatile A[]> cvA;
cvA = std::move(upA);
}
struct A_pointer { operator A*() const { return nullptr; } };
template<typename T>
struct deleter
{
deleter() = default;
template<typename U>
deleter(const deleter<U>) { }
typedef T pointer;
void operator()(T) const { }
};
void
test04()
{
// Allow conversions from user-defined pointer-like types
std::unique_ptr<B[], deleter<A_pointer>> p;
std::unique_ptr<A[], deleter<A*>> upA;
upA = std::move(p);
}
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