xref: /xnu-8792.81.2/tests/intrusive_shared_ptr_src/deref.cpp (revision 19c3b8c28c31cb8130e034cfb5df6bf9ba342d90)
1*19c3b8c2SApple OSS Distributions //
2*19c3b8c2SApple OSS Distributions // Tests for
3*19c3b8c2SApple OSS Distributions //  T& operator*() const noexcept;
4*19c3b8c2SApple OSS Distributions //  T* operator->() const noexcept;
5*19c3b8c2SApple OSS Distributions //
6*19c3b8c2SApple OSS Distributions 
7*19c3b8c2SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
8*19c3b8c2SApple OSS Distributions #include <darwintest.h>
9*19c3b8c2SApple OSS Distributions #include "test_policy.h"
10*19c3b8c2SApple OSS Distributions 
11*19c3b8c2SApple OSS Distributions struct T {
12*19c3b8c2SApple OSS Distributions 	int i;
13*19c3b8c2SApple OSS Distributions };
14*19c3b8c2SApple OSS Distributions 
15*19c3b8c2SApple OSS Distributions template <typename T>
16*19c3b8c2SApple OSS Distributions static void
tests()17*19c3b8c2SApple OSS Distributions tests()
18*19c3b8c2SApple OSS Distributions {
19*19c3b8c2SApple OSS Distributions 	T obj{3};
20*19c3b8c2SApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::no_retain);
21*19c3b8c2SApple OSS Distributions 
22*19c3b8c2SApple OSS Distributions 	{
23*19c3b8c2SApple OSS Distributions 		T& ref = *ptr;
24*19c3b8c2SApple OSS Distributions 		CHECK(&ref == &obj);
25*19c3b8c2SApple OSS Distributions 		CHECK(ref.i == 3);
26*19c3b8c2SApple OSS Distributions 	}
27*19c3b8c2SApple OSS Distributions 
28*19c3b8c2SApple OSS Distributions 	{
29*19c3b8c2SApple OSS Distributions 		int const& ref = ptr->i;
30*19c3b8c2SApple OSS Distributions 		CHECK(&ref == &obj.i);
31*19c3b8c2SApple OSS Distributions 		CHECK(ref == 3);
32*19c3b8c2SApple OSS Distributions 	}
33*19c3b8c2SApple OSS Distributions }
34*19c3b8c2SApple OSS Distributions 
35*19c3b8c2SApple OSS Distributions T_DECL(deref, "intrusive_shared_ptr.deref") {
36*19c3b8c2SApple OSS Distributions 	tests<T>();
37*19c3b8c2SApple OSS Distributions 	tests<T const>();
38*19c3b8c2SApple OSS Distributions }
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