xref: /xnu-11417.101.15/tests/intrusive_shared_ptr_src/deref.cpp (revision e3723e1f17661b24996789d8afc084c0c3303b26)
1*e3723e1fSApple OSS Distributions //
2*e3723e1fSApple OSS Distributions // Tests for
3*e3723e1fSApple OSS Distributions //  T& operator*() const noexcept;
4*e3723e1fSApple OSS Distributions //  T* operator->() const noexcept;
5*e3723e1fSApple OSS Distributions //
6*e3723e1fSApple OSS Distributions 
7*e3723e1fSApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
8*e3723e1fSApple OSS Distributions #include <darwintest.h>
9*e3723e1fSApple OSS Distributions #include "test_policy.h"
10*e3723e1fSApple OSS Distributions 
11*e3723e1fSApple OSS Distributions struct T {
12*e3723e1fSApple OSS Distributions 	int i;
13*e3723e1fSApple OSS Distributions };
14*e3723e1fSApple OSS Distributions 
15*e3723e1fSApple OSS Distributions template <typename T>
16*e3723e1fSApple OSS Distributions static void
tests()17*e3723e1fSApple OSS Distributions tests()
18*e3723e1fSApple OSS Distributions {
19*e3723e1fSApple OSS Distributions 	T obj{3};
20*e3723e1fSApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::no_retain);
21*e3723e1fSApple OSS Distributions 
22*e3723e1fSApple OSS Distributions 	{
23*e3723e1fSApple OSS Distributions 		T& ref = *ptr;
24*e3723e1fSApple OSS Distributions 		CHECK(&ref == &obj);
25*e3723e1fSApple OSS Distributions 		CHECK(ref.i == 3);
26*e3723e1fSApple OSS Distributions 	}
27*e3723e1fSApple OSS Distributions 
28*e3723e1fSApple OSS Distributions 	{
29*e3723e1fSApple OSS Distributions 		int const& ref = ptr->i;
30*e3723e1fSApple OSS Distributions 		CHECK(&ref == &obj.i);
31*e3723e1fSApple OSS Distributions 		CHECK(ref == 3);
32*e3723e1fSApple OSS Distributions 	}
33*e3723e1fSApple OSS Distributions }
34*e3723e1fSApple OSS Distributions 
35*e3723e1fSApple OSS Distributions T_DECL(deref, "intrusive_shared_ptr.deref", T_META_TAG_VM_PREFERRED) {
36*e3723e1fSApple OSS Distributions 	tests<T>();
37*e3723e1fSApple OSS Distributions 	tests<T const>();
38*e3723e1fSApple OSS Distributions }
39