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author | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-11-11 13:10:49 +0000 |
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committer | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-11-11 13:10:49 +0000 |
commit | 7719751deb0052656f422f3915478d84e4f7c7f3 (patch) | |
tree | 050ae8b90da348b14f9b9812f34a3252849c5020 /libstdc++-v3/testsuite/20_util/forward/b.cc | |
parent | ef649fb9cc386b7df12a065e92eea14458981b16 (diff) | |
download | gcc-7719751deb0052656f422f3915478d84e4f7c7f3.tar.gz |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166599 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/testsuite/20_util/forward/b.cc')
-rw-r--r-- | libstdc++-v3/testsuite/20_util/forward/b.cc | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/forward/b.cc b/libstdc++-v3/testsuite/20_util/forward/b.cc new file mode 100644 index 00000000000..4168800b468 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/forward/b.cc @@ -0,0 +1,77 @@ +// { 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 <list> +#include <testsuite_hooks.h> + +template <class T> + struct C + { + T t_; + + 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())) {} + }; + +class A +{ + int data_; +public: + explicit + A(int data = 1) + : data_(data) { } + + ~A() { data_ = -1; } + + void test() const + { + bool test __attribute__((unused)) = true; + VERIFY( data_ == 3 ); + } +}; + +class Awrap +{ + A a_; +public: + explicit Awrap(const A& a) : a_(a) { } + A get() const { return a_; } +}; + +template <class C> +void test(C c) +{ + c.t_.test(); +} + +// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2951.html +// Test B. +int main() +{ + std::list<C<A> > list; + A a(3); + C<A> c((Awrap(a))); + list.push_back(c); + test(c); + test(list.front()); +} |