ad26988476
2010-11-11 Paolo Carlini <paolo.carlini@oracle.com> * include/bits/move.h (forward): Implement N3143, resolving US 90. * testsuite/20_util/forward/a.cc: New. * testsuite/20_util/forward/b.cc: Likewise. * testsuite/20_util/forward/c_neg.cc: Likewise. * testsuite/20_util/forward/d.cc: Likewise. * testsuite/20_util/forward/e.cc: Likewise. * testsuite/20_util/forward/f_neg.cc: Likewise. From-SVN: r166599
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
// { dg-do compile }
|
|
// { dg-options "-std=gnu++0x" }
|
|
|
|
// Copyright (C) 2010 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/>.
|
|
|
|
#include <utility>
|
|
|
|
template <class T>
|
|
struct C
|
|
{
|
|
T t_;
|
|
|
|
C() { }
|
|
|
|
template <class U,
|
|
class = typename std::enable_if
|
|
<
|
|
!std::is_lvalue_reference<U>::value
|
|
>::type>
|
|
C(U&& u) : t_(std::forward<T>(std::move(u).get())) { }
|
|
|
|
C(C&& c) : t_(std::forward<T>(c.t_)) { }
|
|
};
|
|
|
|
template <class T>
|
|
struct Derived
|
|
: C<T>
|
|
{
|
|
Derived() { }
|
|
Derived(Derived&& d) : C<T>(std::forward<C<T>>(d)) { }
|
|
};
|
|
|
|
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2951.html
|
|
// Test E.
|
|
int main()
|
|
{
|
|
Derived<int> d;
|
|
Derived<int> d2(std::move(d));
|
|
}
|