xref: /xnu-11215.81.4/tests/intrusive_shared_ptr_src/deref.cpp (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions //
2*d4514f0bSApple OSS Distributions // Tests for
3*d4514f0bSApple OSS Distributions //  T& operator*() const noexcept;
4*d4514f0bSApple OSS Distributions //  T* operator->() const noexcept;
5*d4514f0bSApple OSS Distributions //
6*d4514f0bSApple OSS Distributions 
7*d4514f0bSApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
8*d4514f0bSApple OSS Distributions #include <darwintest.h>
9*d4514f0bSApple OSS Distributions #include "test_policy.h"
10*d4514f0bSApple OSS Distributions 
11*d4514f0bSApple OSS Distributions struct T {
12*d4514f0bSApple OSS Distributions 	int i;
13*d4514f0bSApple OSS Distributions };
14*d4514f0bSApple OSS Distributions 
15*d4514f0bSApple OSS Distributions template <typename T>
16*d4514f0bSApple OSS Distributions static void
tests()17*d4514f0bSApple OSS Distributions tests()
18*d4514f0bSApple OSS Distributions {
19*d4514f0bSApple OSS Distributions 	T obj{3};
20*d4514f0bSApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::no_retain);
21*d4514f0bSApple OSS Distributions 
22*d4514f0bSApple OSS Distributions 	{
23*d4514f0bSApple OSS Distributions 		T& ref = *ptr;
24*d4514f0bSApple OSS Distributions 		CHECK(&ref == &obj);
25*d4514f0bSApple OSS Distributions 		CHECK(ref.i == 3);
26*d4514f0bSApple OSS Distributions 	}
27*d4514f0bSApple OSS Distributions 
28*d4514f0bSApple OSS Distributions 	{
29*d4514f0bSApple OSS Distributions 		int const& ref = ptr->i;
30*d4514f0bSApple OSS Distributions 		CHECK(&ref == &obj.i);
31*d4514f0bSApple OSS Distributions 		CHECK(ref == 3);
32*d4514f0bSApple OSS Distributions 	}
33*d4514f0bSApple OSS Distributions }
34*d4514f0bSApple OSS Distributions 
35*d4514f0bSApple OSS Distributions T_DECL(deref, "intrusive_shared_ptr.deref", T_META_TAG_VM_PREFERRED) {
36*d4514f0bSApple OSS Distributions 	tests<T>();
37*d4514f0bSApple OSS Distributions 	tests<T const>();
38*d4514f0bSApple OSS Distributions }
39