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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/23_containers/vector/modifiers/insert/aliasing.cc
1 // Copyright (C) 2016-2017 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-do run { target c++14 } }
22 #include <testsuite_hooks.h>
24 // See https://gcc.gnu.org/ml/libstdc++/2016-07/msg00008.html for background.
28 T(int v
= 0) : value(v
) { }
30 T
& operator=(const T
& t
);
31 void make_child() { child
= std::make_unique
<T
>(value
+ 10); }
32 std::unique_ptr
<T
> child
;
36 T::T(const T
& t
) : value(t
.value
)
39 child
.reset(new T(*t
.child
));
42 T
& T::operator=(const T
& t
)
50 child
.reset(new T(*t
.child
));
63 v
.back().make_child();
65 v
.back().make_child();
67 VERIFY(v
[1].child
->value
== 12);
68 VERIFY(v
[1].child
->child
== nullptr);
70 v
.insert(v
.begin(), *v
[1].child
);
72 VERIFY(v
[0].value
== 12);
73 VERIFY(v
[0].child
== nullptr);