xref: /xnu-8020.101.4/tests/intrusive_shared_ptr_src/deref.cpp (revision e7776783b89a353188416a9a346c6cdb4928faad)
1*e7776783SApple OSS Distributions //
2*e7776783SApple OSS Distributions // Tests for
3*e7776783SApple OSS Distributions //  T& operator*() const noexcept;
4*e7776783SApple OSS Distributions //  T* operator->() const noexcept;
5*e7776783SApple OSS Distributions //
6*e7776783SApple OSS Distributions 
7*e7776783SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
8*e7776783SApple OSS Distributions #include <darwintest.h>
9*e7776783SApple OSS Distributions #include "test_policy.h"
10*e7776783SApple OSS Distributions 
11*e7776783SApple OSS Distributions struct T {
12*e7776783SApple OSS Distributions 	int i;
13*e7776783SApple OSS Distributions };
14*e7776783SApple OSS Distributions 
15*e7776783SApple OSS Distributions template <typename T>
16*e7776783SApple OSS Distributions static void
tests()17*e7776783SApple OSS Distributions tests()
18*e7776783SApple OSS Distributions {
19*e7776783SApple OSS Distributions 	T obj{3};
20*e7776783SApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::no_retain);
21*e7776783SApple OSS Distributions 
22*e7776783SApple OSS Distributions 	{
23*e7776783SApple OSS Distributions 		T& ref = *ptr;
24*e7776783SApple OSS Distributions 		CHECK(&ref == &obj);
25*e7776783SApple OSS Distributions 		CHECK(ref.i == 3);
26*e7776783SApple OSS Distributions 	}
27*e7776783SApple OSS Distributions 
28*e7776783SApple OSS Distributions 	{
29*e7776783SApple OSS Distributions 		int const& ref = ptr->i;
30*e7776783SApple OSS Distributions 		CHECK(&ref == &obj.i);
31*e7776783SApple OSS Distributions 		CHECK(ref == 3);
32*e7776783SApple OSS Distributions 	}
33*e7776783SApple OSS Distributions }
34*e7776783SApple OSS Distributions 
35*e7776783SApple OSS Distributions T_DECL(deref, "intrusive_shared_ptr.deref") {
36*e7776783SApple OSS Distributions 	tests<T>();
37*e7776783SApple OSS Distributions 	tests<T const>();
38*e7776783SApple OSS Distributions }
39