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smart_ptr/test/intrusive_ptr_test.cpp
Peter Dimov 94d31304f3 Remove uses of BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
2024-09-25 20:26:14 +03:00

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//
// intrusive_ptr_test.cpp
//
// Copyright (c) 2002-2005 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#include <boost/intrusive_ptr.hpp>
#include <boost/smart_ptr/detail/atomic_count.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/config.hpp>
#include <algorithm>
#include <functional>
//
namespace N
{
class base
{
private:
mutable boost::detail::atomic_count use_count_;
base(base const &);
base & operator=(base const &);
protected:
base(): use_count_(0)
{
++instances;
}
virtual ~base()
{
--instances;
}
public:
static long instances;
long use_count() const
{
return use_count_;
}
inline friend void intrusive_ptr_add_ref(base const * p)
{
++p->use_count_;
}
inline friend void intrusive_ptr_release(base const * p)
{
if(--p->use_count_ == 0) delete p;
}
};
long base::instances = 0;
} // namespace N
//
struct X: public virtual N::base
{
};
struct Y: public X
{
};
//
namespace n_element_type
{
void f(X &)
{
}
void test()
{
typedef boost::intrusive_ptr<X>::element_type T;
T t;
f(t);
}
} // namespace n_element_type
namespace n_constructors
{
void default_constructor()
{
boost::intrusive_ptr<X> px;
BOOST_TEST(px.get() == 0);
}
void pointer_constructor()
{
{
boost::intrusive_ptr<X> px(0);
BOOST_TEST(px.get() == 0);
}
{
boost::intrusive_ptr<X> px(0, false);
BOOST_TEST(px.get() == 0);
}
BOOST_TEST( N::base::instances == 0 );
{
X * p = new X;
BOOST_TEST(p->use_count() == 0);
BOOST_TEST( N::base::instances == 1 );
boost::intrusive_ptr<X> px(p);
BOOST_TEST(px.get() == p);
BOOST_TEST(px->use_count() == 1);
}
BOOST_TEST( N::base::instances == 0 );
{
X * p = new X;
BOOST_TEST(p->use_count() == 0);
BOOST_TEST( N::base::instances == 1 );
intrusive_ptr_add_ref(p);
BOOST_TEST(p->use_count() == 1);
boost::intrusive_ptr<X> px(p, false);
BOOST_TEST(px.get() == p);
BOOST_TEST(px->use_count() == 1);
}
BOOST_TEST( N::base::instances == 0 );
}
void copy_constructor()
{
{
boost::intrusive_ptr<X> px;
boost::intrusive_ptr<X> px2(px);
BOOST_TEST(px2.get() == px.get());
}
{
boost::intrusive_ptr<Y> py;
boost::intrusive_ptr<X> px(py);
BOOST_TEST(px.get() == py.get());
}
{
boost::intrusive_ptr<X> px(0);
boost::intrusive_ptr<X> px2(px);
BOOST_TEST(px2.get() == px.get());
}
{
boost::intrusive_ptr<Y> py(0);
boost::intrusive_ptr<X> px(py);
BOOST_TEST(px.get() == py.get());
}
{
boost::intrusive_ptr<X> px(0, false);
boost::intrusive_ptr<X> px2(px);
BOOST_TEST(px2.get() == px.get());
}
{
boost::intrusive_ptr<Y> py(0, false);
boost::intrusive_ptr<X> px(py);
BOOST_TEST(px.get() == py.get());
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px(new X);
boost::intrusive_ptr<X> px2(px);
BOOST_TEST( px2.get() == px.get() );
BOOST_TEST( N::base::instances == 1 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<Y> py(new Y);
boost::intrusive_ptr<X> px(py);
BOOST_TEST( px.get() == py.get() );
BOOST_TEST( N::base::instances == 1 );
}
BOOST_TEST( N::base::instances == 0 );
}
void test()
{
default_constructor();
pointer_constructor();
copy_constructor();
}
} // namespace n_constructors
namespace n_destructor
{
void test()
{
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px(new X);
BOOST_TEST(px->use_count() == 1);
BOOST_TEST( N::base::instances == 1 );
{
boost::intrusive_ptr<X> px2(px);
BOOST_TEST(px->use_count() == 2);
}
BOOST_TEST(px->use_count() == 1);
}
BOOST_TEST( N::base::instances == 0 );
}
} // namespace n_destructor
namespace n_assignment
{
void copy_assignment()
{
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> p1;
p1 = p1;
BOOST_TEST(p1 == p1);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
boost::intrusive_ptr<X> p2;
p1 = p2;
BOOST_TEST(p1 == p2);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
boost::intrusive_ptr<X> p3(p1);
p1 = p3;
BOOST_TEST(p1 == p3);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
BOOST_TEST(N::base::instances == 0);
boost::intrusive_ptr<X> p4(new X);
BOOST_TEST(N::base::instances == 1);
p1 = p4;
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p1 == p4);
BOOST_TEST(p1->use_count() == 2);
p1 = p2;
BOOST_TEST(p1 == p2);
BOOST_TEST(N::base::instances == 1);
p4 = p3;
BOOST_TEST(p4 == p3);
BOOST_TEST(N::base::instances == 0);
}
}
void conversion_assignment()
{
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> p1;
boost::intrusive_ptr<Y> p2;
p1 = p2;
BOOST_TEST(p1 == p2);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
BOOST_TEST(N::base::instances == 0);
boost::intrusive_ptr<Y> p4(new Y);
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p4->use_count() == 1);
boost::intrusive_ptr<X> p5(p4);
BOOST_TEST(p4->use_count() == 2);
p1 = p4;
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p1 == p4);
BOOST_TEST(p1->use_count() == 3);
BOOST_TEST(p4->use_count() == 3);
p1 = p2;
BOOST_TEST(p1 == p2);
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p4->use_count() == 2);
p4 = p2;
p5 = p2;
BOOST_TEST(p4 == p2);
BOOST_TEST(N::base::instances == 0);
}
}
void pointer_assignment()
{
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> p1;
p1 = p1.get();
BOOST_TEST(p1 == p1);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
boost::intrusive_ptr<X> p2;
p1 = p2.get();
BOOST_TEST(p1 == p2);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
boost::intrusive_ptr<X> p3(p1);
p1 = p3.get();
BOOST_TEST(p1 == p3);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
BOOST_TEST(N::base::instances == 0);
boost::intrusive_ptr<X> p4(new X);
BOOST_TEST(N::base::instances == 1);
p1 = p4.get();
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p1 == p4);
BOOST_TEST(p1->use_count() == 2);
p1 = p2.get();
BOOST_TEST(p1 == p2);
BOOST_TEST(N::base::instances == 1);
p4 = p3.get();
BOOST_TEST(p4 == p3);
BOOST_TEST(N::base::instances == 0);
}
{
boost::intrusive_ptr<X> p1;
boost::intrusive_ptr<Y> p2;
p1 = p2.get();
BOOST_TEST(p1 == p2);
BOOST_TEST(p1? false: true);
BOOST_TEST(!p1);
BOOST_TEST(p1.get() == 0);
BOOST_TEST(N::base::instances == 0);
boost::intrusive_ptr<Y> p4(new Y);
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p4->use_count() == 1);
boost::intrusive_ptr<X> p5(p4);
BOOST_TEST(p4->use_count() == 2);
p1 = p4.get();
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p1 == p4);
BOOST_TEST(p1->use_count() == 3);
BOOST_TEST(p4->use_count() == 3);
p1 = p2.get();
BOOST_TEST(p1 == p2);
BOOST_TEST(N::base::instances == 1);
BOOST_TEST(p4->use_count() == 2);
p4 = p2.get();
p5 = p2.get();
BOOST_TEST(p4 == p2);
BOOST_TEST(N::base::instances == 0);
}
}
void test()
{
copy_assignment();
conversion_assignment();
pointer_assignment();
}
} // namespace n_assignment
namespace n_reset
{
void test()
{
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px;
BOOST_TEST( px.get() == 0 );
px.reset();
BOOST_TEST( px.get() == 0 );
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
BOOST_TEST( N::base::instances == 1 );
px.reset( p );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
px.reset();
BOOST_TEST( px.get() == 0 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px( new X );
BOOST_TEST( N::base::instances == 1 );
px.reset( 0 );
BOOST_TEST( px.get() == 0 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px( new X );
BOOST_TEST( N::base::instances == 1 );
px.reset( 0, false );
BOOST_TEST( px.get() == 0 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px( new X );
BOOST_TEST( N::base::instances == 1 );
px.reset( 0, true );
BOOST_TEST( px.get() == 0 );
}
BOOST_TEST( N::base::instances == 0 );
{
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
BOOST_TEST( N::base::instances == 1 );
boost::intrusive_ptr<X> px;
BOOST_TEST( px.get() == 0 );
px.reset( p, true );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
}
BOOST_TEST( N::base::instances == 0 );
{
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
BOOST_TEST( N::base::instances == 1 );
intrusive_ptr_add_ref( p );
BOOST_TEST( p->use_count() == 1 );
boost::intrusive_ptr<X> px;
BOOST_TEST( px.get() == 0 );
px.reset( p, false );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px( new X );
BOOST_TEST( px.get() != 0 );
BOOST_TEST( px->use_count() == 1 );
BOOST_TEST( N::base::instances == 1 );
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
BOOST_TEST( N::base::instances == 2 );
px.reset( p );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
BOOST_TEST( N::base::instances == 1 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px( new X );
BOOST_TEST( px.get() != 0 );
BOOST_TEST( px->use_count() == 1 );
BOOST_TEST( N::base::instances == 1 );
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
BOOST_TEST( N::base::instances == 2 );
px.reset( p, true );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
BOOST_TEST( N::base::instances == 1 );
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px( new X );
BOOST_TEST( px.get() != 0 );
BOOST_TEST( px->use_count() == 1 );
BOOST_TEST( N::base::instances == 1 );
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
intrusive_ptr_add_ref( p );
BOOST_TEST( p->use_count() == 1 );
BOOST_TEST( N::base::instances == 2 );
px.reset( p, false );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
BOOST_TEST( N::base::instances == 1 );
}
BOOST_TEST( N::base::instances == 0 );
}
} // namespace n_reset
namespace n_access
{
void test()
{
{
boost::intrusive_ptr<X> px;
BOOST_TEST(px? false: true);
BOOST_TEST(!px);
BOOST_TEST(get_pointer(px) == px.get());
}
{
boost::intrusive_ptr<X> px(0);
BOOST_TEST(px? false: true);
BOOST_TEST(!px);
BOOST_TEST(get_pointer(px) == px.get());
}
{
boost::intrusive_ptr<X> px(new X);
BOOST_TEST(px? true: false);
BOOST_TEST(!!px);
BOOST_TEST(&*px == px.get());
BOOST_TEST(px.operator ->() == px.get());
BOOST_TEST(get_pointer(px) == px.get());
}
{
boost::intrusive_ptr<X> px;
X* detached = px.detach();
BOOST_TEST( px.get() == 0 );
BOOST_TEST( detached == 0 );
}
{
X * p = new X;
BOOST_TEST( p->use_count() == 0 );
boost::intrusive_ptr<X> px( p );
BOOST_TEST( px.get() == p );
BOOST_TEST( px->use_count() == 1 );
X * detached = px.detach();
BOOST_TEST( px.get() == 0 );
BOOST_TEST( detached == p );
BOOST_TEST( detached->use_count() == 1 );
delete detached;
}
}
} // namespace n_access
namespace n_swap
{
void test()
{
{
boost::intrusive_ptr<X> px;
boost::intrusive_ptr<X> px2;
px.swap(px2);
BOOST_TEST(px.get() == 0);
BOOST_TEST(px2.get() == 0);
using std::swap;
swap(px, px2);
BOOST_TEST(px.get() == 0);
BOOST_TEST(px2.get() == 0);
}
{
X * p = new X;
boost::intrusive_ptr<X> px;
boost::intrusive_ptr<X> px2(p);
boost::intrusive_ptr<X> px3(px2);
px.swap(px2);
BOOST_TEST(px.get() == p);
BOOST_TEST(px->use_count() == 2);
BOOST_TEST(px2.get() == 0);
BOOST_TEST(px3.get() == p);
BOOST_TEST(px3->use_count() == 2);
using std::swap;
swap(px, px2);
BOOST_TEST(px.get() == 0);
BOOST_TEST(px2.get() == p);
BOOST_TEST(px2->use_count() == 2);
BOOST_TEST(px3.get() == p);
BOOST_TEST(px3->use_count() == 2);
}
{
X * p1 = new X;
X * p2 = new X;
boost::intrusive_ptr<X> px(p1);
boost::intrusive_ptr<X> px2(p2);
boost::intrusive_ptr<X> px3(px2);
px.swap(px2);
BOOST_TEST(px.get() == p2);
BOOST_TEST(px->use_count() == 2);
BOOST_TEST(px2.get() == p1);
BOOST_TEST(px2->use_count() == 1);
BOOST_TEST(px3.get() == p2);
BOOST_TEST(px3->use_count() == 2);
using std::swap;
swap(px, px2);
BOOST_TEST(px.get() == p1);
BOOST_TEST(px->use_count() == 1);
BOOST_TEST(px2.get() == p2);
BOOST_TEST(px2->use_count() == 2);
BOOST_TEST(px3.get() == p2);
BOOST_TEST(px3->use_count() == 2);
}
}
} // namespace n_swap
namespace n_comparison
{
template<class T, class U> void test2(boost::intrusive_ptr<T> const & p, boost::intrusive_ptr<U> const & q)
{
BOOST_TEST((p == q) == (p.get() == q.get()));
BOOST_TEST((p != q) == (p.get() != q.get()));
}
template<class T> void test3(boost::intrusive_ptr<T> const & p, boost::intrusive_ptr<T> const & q)
{
BOOST_TEST((p == q) == (p.get() == q.get()));
BOOST_TEST((p.get() == q) == (p.get() == q.get()));
BOOST_TEST((p == q.get()) == (p.get() == q.get()));
BOOST_TEST((p != q) == (p.get() != q.get()));
BOOST_TEST((p.get() != q) == (p.get() != q.get()));
BOOST_TEST((p != q.get()) == (p.get() != q.get()));
// 'less' moved here as a g++ 2.9x parse error workaround
std::less<T*> less;
BOOST_TEST((p < q) == less(p.get(), q.get()));
}
void test()
{
{
boost::intrusive_ptr<X> px;
test3(px, px);
boost::intrusive_ptr<X> px2;
test3(px, px2);
boost::intrusive_ptr<X> px3(px);
test3(px3, px3);
test3(px, px3);
}
{
boost::intrusive_ptr<X> px;
boost::intrusive_ptr<X> px2(new X);
test3(px, px2);
test3(px2, px2);
boost::intrusive_ptr<X> px3(new X);
test3(px2, px3);
boost::intrusive_ptr<X> px4(px2);
test3(px2, px4);
test3(px4, px4);
}
{
boost::intrusive_ptr<X> px(new X);
boost::intrusive_ptr<Y> py(new Y);
test2(px, py);
boost::intrusive_ptr<X> px2(py);
test2(px2, py);
test3(px, px2);
test3(px2, px2);
}
}
} // namespace n_comparison
namespace n_static_cast
{
void test()
{
{
boost::intrusive_ptr<X> px(new Y);
boost::intrusive_ptr<Y> py = boost::static_pointer_cast<Y>(px);
BOOST_TEST(px.get() == py.get());
BOOST_TEST(px->use_count() == 2);
BOOST_TEST(py->use_count() == 2);
boost::intrusive_ptr<X> px2(py);
BOOST_TEST(px2.get() == px.get());
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<Y> py = boost::static_pointer_cast<Y>( boost::intrusive_ptr<X>(new Y) );
BOOST_TEST(py.get() != 0);
BOOST_TEST(py->use_count() == 1);
}
BOOST_TEST( N::base::instances == 0 );
}
} // namespace n_static_cast
namespace n_const_cast
{
void test()
{
{
boost::intrusive_ptr<X const> px;
boost::intrusive_ptr<X> px2 = boost::const_pointer_cast<X>(px);
BOOST_TEST(px2.get() == 0);
}
{
boost::intrusive_ptr<X> px2 = boost::const_pointer_cast<X>( boost::intrusive_ptr<X const>() );
BOOST_TEST(px2.get() == 0);
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X const> px(new X);
boost::intrusive_ptr<X> px2 = boost::const_pointer_cast<X>(px);
BOOST_TEST(px2.get() == px.get());
BOOST_TEST(px2->use_count() == 2);
BOOST_TEST(px->use_count() == 2);
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px = boost::const_pointer_cast<X>( boost::intrusive_ptr<X const>(new X) );
BOOST_TEST(px.get() != 0);
BOOST_TEST(px->use_count() == 1);
}
BOOST_TEST( N::base::instances == 0 );
}
} // namespace n_const_cast
namespace n_dynamic_cast
{
void test()
{
{
boost::intrusive_ptr<X> px;
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>(px);
BOOST_TEST(py.get() == 0);
}
{
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>( boost::intrusive_ptr<X>() );
BOOST_TEST(py.get() == 0);
}
{
boost::intrusive_ptr<X> px(static_cast<X*>(0));
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>(px);
BOOST_TEST(py.get() == 0);
}
{
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>( boost::intrusive_ptr<X>(static_cast<X*>(0)) );
BOOST_TEST(py.get() == 0);
}
{
boost::intrusive_ptr<X> px(new X);
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>(px);
BOOST_TEST(py.get() == 0);
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>( boost::intrusive_ptr<X>(new X) );
BOOST_TEST(py.get() == 0);
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px(new Y);
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>(px);
BOOST_TEST(py.get() == px.get());
BOOST_TEST(py->use_count() == 2);
BOOST_TEST(px->use_count() == 2);
}
BOOST_TEST( N::base::instances == 0 );
{
boost::intrusive_ptr<X> px(new Y);
boost::intrusive_ptr<Y> py = boost::dynamic_pointer_cast<Y>( boost::intrusive_ptr<X>(new Y) );
BOOST_TEST(py.get() != 0);
BOOST_TEST(py->use_count() == 1);
}
BOOST_TEST( N::base::instances == 0 );
}
} // namespace n_dynamic_cast
namespace n_transitive
{
struct X: public N::base
{
boost::intrusive_ptr<X> next;
};
void test()
{
boost::intrusive_ptr<X> p(new X);
p->next = boost::intrusive_ptr<X>(new X);
BOOST_TEST(!p->next->next);
p = p->next;
BOOST_TEST(!p->next);
}
} // namespace n_transitive
namespace n_report_1
{
class foo: public N::base
{
public:
foo(): m_self(this)
{
}
void suicide()
{
m_self = 0;
}
private:
boost::intrusive_ptr<foo> m_self;
};
void test()
{
foo * foo_ptr = new foo;
foo_ptr->suicide();
}
} // namespace n_report_1
int main()
{
n_element_type::test();
n_constructors::test();
n_destructor::test();
n_assignment::test();
n_reset::test();
n_access::test();
n_swap::test();
n_comparison::test();
n_static_cast::test();
n_const_cast::test();
n_dynamic_cast::test();
n_transitive::test();
n_report_1::test();
return boost::report_errors();
}
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