Retro68/gcc/libstdc++-v3/testsuite/experimental/any/assign/self.cc
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

94 lines
1.8 KiB
C++

// Copyright (C) 2015-2019 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-do run { target c++14 } }
#include <experimental/any>
#include <set>
#include <testsuite_hooks.h>
std::set<const void*> live_objects;
struct A {
A() { live_objects.insert(this); }
~A() { live_objects.erase(this); }
A(const A& a) { VERIFY(live_objects.count(&a)); live_objects.insert(this); }
};
void
test01()
{
using std::experimental::any;
any a;
a = a;
VERIFY( a.empty() );
a = A{};
a = a;
VERIFY( !a.empty() );
a.clear();
VERIFY( live_objects.empty() );
}
void
test02()
{
using std::experimental::any;
struct X {
any a;
};
X x;
std::swap(x, x); // results in "self-move-assignment" of X::a
VERIFY( x.a.empty() );
x.a = A{};
std::swap(x, x); // results in "self-move-assignment" of X::a
VERIFY( !x.a.empty() );
x.a.clear();
VERIFY( live_objects.empty() );
}
void
test03()
{
using std::experimental::any;
any a;
a.swap(a);
VERIFY( a.empty() );
a = A{};
a.swap(a);
VERIFY( !a.empty() );
a.clear();
VERIFY( live_objects.empty() );
}
int
main()
{
test01();
test02();
test03();
}