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// Copyright (C) 2005-2022 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/>.
// TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared]
#include <tr1/memory>
#include <testsuite_hooks.h>
struct A
{
A() { ++ctor_count; }
~A() { ++dtor_count; }
static long ctor_count;
static long dtor_count;
};
long A::ctor_count = 0;
long A::dtor_count = 0;
struct B : A
{
B() { ++ctor_count; }
~B() { ++dtor_count; }
static long ctor_count;
static long dtor_count;
};
long B::ctor_count = 0;
long B::dtor_count = 0;
struct D
{
void operator()(const B* p) { delete p; ++delete_count; }
static long delete_count;
};
long D::delete_count = 0;
struct reset_count_struct
{
~reset_count_struct()
{
A::ctor_count = 0;
A::dtor_count = 0;
B::ctor_count = 0;
B::dtor_count = 0;
D::delete_count = 0;
}
};
// 2.2.3.2 shared_ptr destructor [tr.util.smartptr.shared.dest]
// empty shared_ptr
int
test01()
{
reset_count_struct __attribute__((unused)) reset;
{
std::tr1::shared_ptr<A> a;
}
VERIFY( A::ctor_count == 0 );
VERIFY( A::dtor_count == 0 );
VERIFY( B::ctor_count == 0 );
VERIFY( B::dtor_count == 0 );
VERIFY( D::delete_count == 0 );
return 0;
}
// shared ownership
int
test02()
{
reset_count_struct __attribute__((unused)) reset;
std::tr1::shared_ptr<A> a;
{
a = std::tr1::shared_ptr<A>(new B, D());
}
VERIFY( A::ctor_count == 1 );
VERIFY( A::dtor_count == 0 );
VERIFY( B::ctor_count == 1 );
VERIFY( B::dtor_count == 0 );
VERIFY( D::delete_count == 0 );
return 0;
}
// exclusive ownership
int
test03()
{
reset_count_struct __attribute__((unused)) reset;
{
std::tr1::shared_ptr<A> a1(new B);
std::tr1::shared_ptr<A> a2(new B, D());
}
VERIFY( A::ctor_count == 2 );
VERIFY( A::dtor_count == 2 );
VERIFY( B::ctor_count == 2 );
VERIFY( B::dtor_count == 2 );
VERIFY( D::delete_count == 1 );
return 0;
}
int
main()
{
test01();
test02();
test03();
return 0;
}
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