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Add cast tests to intrusive_ptr_test

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This commit is contained in:
Peter Dimov
2019-04-20 18:54:13 +03:00
parent 2a4aca403a
commit 18974ea2db
1 changed files with 130 additions and 7 deletions
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137
test/intrusive_ptr_test.cpp
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@ -42,7 +42,7 @@ class base
{
private:
boost::detail::atomic_count use_count_;
mutable boost::detail::atomic_count use_count_;
base(base const &);
base & operator=(base const &);
@ -70,24 +70,24 @@ public:
#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
inline friend void intrusive_ptr_add_ref(base * p)
inline friend void intrusive_ptr_add_ref(base const * p)
{
++p->use_count_;
}
inline friend void intrusive_ptr_release(base * p)
inline friend void intrusive_ptr_release(base const * p)
{
if(--p->use_count_ == 0) delete p;
}
#else
void add_ref()
void add_ref() const
{
++use_count_;
}
void release()
void release() const
{
if(--use_count_ == 0) delete this;
}
@ -104,12 +104,12 @@ long base::instances = 0;
namespace boost
{
inline void intrusive_ptr_add_ref(N::base * p)
inline void intrusive_ptr_add_ref(N::base const * p)
{
p->add_ref();
}
inline void intrusive_ptr_release(N::base * p)
inline void intrusive_ptr_release(N::base const * p)
{
p->release();
}
@ -904,15 +904,137 @@ 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
@ -976,6 +1098,7 @@ int main()
n_swap::test();
n_comparison::test();
n_static_cast::test();
n_const_cast::test();
n_dynamic_cast::test();
n_transitive::test();