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// { dg-do compile }
// { dg-options "-std=gnu++11" }
// Copyright (C) 2010-2015 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/>.
// { dg-error "static assertion failed" "" { target *-*-* } 89 }
#include <utility>
template <class T>
struct C
{
T t_;
C() {}
explicit C(const T& t) : t_(t) { }
template <class U,
class = typename std::enable_if
<
std::is_convertible<U, T>::value
>::type>
C(C<U>&& c) : t_(std::forward<T>(c.t_)) { }
};
class B;
class A
{
int data_;
friend class B;
public:
explicit
A(int data = 1)
: data_(data) { }
~A() { data_ = -1; }
void test() const
{
__builtin_abort();
}
};
class B
{
int data_;
public:
explicit
B(int data = 1)
: data_(data) { }
B(const A& a) : data_(a.data_) { }
B(A&& a) : data_(a.data_) { a.data_ = 100; }
~B() { data_ = -1; }
void test() const
{
__builtin_abort();
}
};
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2951.html
// Test F.
int main()
{
A a(3);
C<A> ca(a);
C<const B&> cb(std::move(ca));
cb.t_.test();
}
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