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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libstdc++-v3/] [testsuite/] [20_util/] [forward/] [f_neg.cc] - Rev 749
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// { dg-do compile } // { dg-options "-std=gnu++0x" } // Copyright (C) 2010, 2011 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 *-*-* } 90 } #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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