#include <libkern/c++/intrusive_shared_ptr.h>
#include <utility>
#include <darwintest.h>
#include "test_policy.h"
struct T { int i; };
template <typename Stored, typename From, typename To>
static void
tests()
{
Stored obj{3};
{
tracked_shared_ptr<From> const from(&obj, libkern::no_retain);
tracking_policy::reset();
tracked_shared_ptr<To> to = libkern::const_pointer_cast<To>(from);
CHECK(tracking_policy::retains == 1);
CHECK(tracking_policy::releases == 0);
CHECK(to.get() == const_cast<To*>(&obj));
CHECK(from.get() == &obj);
}
{
tracked_shared_ptr<From> from(&obj, libkern::no_retain);
tracking_policy::reset();
tracked_shared_ptr<To> to = libkern::const_pointer_cast<To>(std::move(from));
CHECK(tracking_policy::retains == 0);
CHECK(tracking_policy::releases == 0);
CHECK(to.get() == const_cast<To*>(&obj));
CHECK(from.get() == nullptr);
}
{
tracked_shared_ptr<From> const from = nullptr;
tracking_policy::reset();
tracked_shared_ptr<To> to = libkern::const_pointer_cast<To>(from);
CHECK(tracking_policy::retains == 0);
CHECK(tracking_policy::releases == 0);
CHECK(to.get() == nullptr);
CHECK(from.get() == nullptr);
}
{
tracked_shared_ptr<From> from = nullptr;
tracking_policy::reset();
tracked_shared_ptr<To> to = libkern::const_pointer_cast<To>(std::move(from));
CHECK(tracking_policy::retains == 0);
CHECK(tracking_policy::releases == 0);
CHECK(to.get() == nullptr);
CHECK(from.get() == nullptr);
}
}
T_DECL(cast_const, "intrusive_shared_ptr.cast.const") {
tests< T, T, T>();
tests< T, T, T const>();
tests< T, T const, T>();
}