xref: /xnu-11417.121.6/tests/intrusive_shared_ptr_src/deref.cpp (revision a1e26a70f38d1d7daa7b49b258e2f8538ad81650)
1*a1e26a70SApple OSS Distributions //
2*a1e26a70SApple OSS Distributions // Tests for
3*a1e26a70SApple OSS Distributions //  T& operator*() const noexcept;
4*a1e26a70SApple OSS Distributions //  T* operator->() const noexcept;
5*a1e26a70SApple OSS Distributions //
6*a1e26a70SApple OSS Distributions 
7*a1e26a70SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
8*a1e26a70SApple OSS Distributions #include <darwintest.h>
9*a1e26a70SApple OSS Distributions #include "test_policy.h"
10*a1e26a70SApple OSS Distributions 
11*a1e26a70SApple OSS Distributions struct T {
12*a1e26a70SApple OSS Distributions 	int i;
13*a1e26a70SApple OSS Distributions };
14*a1e26a70SApple OSS Distributions 
15*a1e26a70SApple OSS Distributions template <typename T>
16*a1e26a70SApple OSS Distributions static void
tests()17*a1e26a70SApple OSS Distributions tests()
18*a1e26a70SApple OSS Distributions {
19*a1e26a70SApple OSS Distributions 	T obj{3};
20*a1e26a70SApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::no_retain);
21*a1e26a70SApple OSS Distributions 
22*a1e26a70SApple OSS Distributions 	{
23*a1e26a70SApple OSS Distributions 		T& ref = *ptr;
24*a1e26a70SApple OSS Distributions 		CHECK(&ref == &obj);
25*a1e26a70SApple OSS Distributions 		CHECK(ref.i == 3);
26*a1e26a70SApple OSS Distributions 	}
27*a1e26a70SApple OSS Distributions 
28*a1e26a70SApple OSS Distributions 	{
29*a1e26a70SApple OSS Distributions 		int const& ref = ptr->i;
30*a1e26a70SApple OSS Distributions 		CHECK(&ref == &obj.i);
31*a1e26a70SApple OSS Distributions 		CHECK(ref == 3);
32*a1e26a70SApple OSS Distributions 	}
33*a1e26a70SApple OSS Distributions }
34*a1e26a70SApple OSS Distributions 
35*a1e26a70SApple OSS Distributions T_DECL(deref, "intrusive_shared_ptr.deref", T_META_TAG_VM_PREFERRED) {
36*a1e26a70SApple OSS Distributions 	tests<T>();
37*a1e26a70SApple OSS Distributions 	tests<T const>();
38*a1e26a70SApple OSS Distributions }
39