xref: /xnu-8796.141.3/tests/intrusive_shared_ptr_src/dtor.cpp (revision 1b191cb58250d0705d8a51287127505aa4bc0789)
1*1b191cb5SApple OSS Distributions //
2*1b191cb5SApple OSS Distributions // Tests for
3*1b191cb5SApple OSS Distributions //  ~intrusive_shared_ptr();
4*1b191cb5SApple OSS Distributions //
5*1b191cb5SApple OSS Distributions 
6*1b191cb5SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*1b191cb5SApple OSS Distributions #include <darwintest.h>
8*1b191cb5SApple OSS Distributions #include <darwintest_utils.h>
9*1b191cb5SApple OSS Distributions #include "test_policy.h"
10*1b191cb5SApple OSS Distributions 
11*1b191cb5SApple OSS Distributions struct T { int i; };
12*1b191cb5SApple OSS Distributions 
13*1b191cb5SApple OSS Distributions T_DECL(dtor, "intrusive_shared_ptr.dtor") {
14*1b191cb5SApple OSS Distributions 	// Destroy a non-null shared pointer
15*1b191cb5SApple OSS Distributions 	{
16*1b191cb5SApple OSS Distributions 		T obj{0};
17*1b191cb5SApple OSS Distributions 		test_policy::retain_count = 3;
18*1b191cb5SApple OSS Distributions 
19*1b191cb5SApple OSS Distributions 		{
20*1b191cb5SApple OSS Distributions 			libkern::intrusive_shared_ptr<T, test_policy> ptr(&obj, libkern::no_retain);
21*1b191cb5SApple OSS Distributions 			CHECK(test_policy::retain_count == 3);
22*1b191cb5SApple OSS Distributions 		}
23*1b191cb5SApple OSS Distributions 
24*1b191cb5SApple OSS Distributions 		CHECK(test_policy::retain_count == 2);
25*1b191cb5SApple OSS Distributions 	}
26*1b191cb5SApple OSS Distributions 
27*1b191cb5SApple OSS Distributions 	// Destroy a null shared pointer
28*1b191cb5SApple OSS Distributions 	{
29*1b191cb5SApple OSS Distributions 		test_policy::retain_count = 3;
30*1b191cb5SApple OSS Distributions 
31*1b191cb5SApple OSS Distributions 		{
32*1b191cb5SApple OSS Distributions 			libkern::intrusive_shared_ptr<T, test_policy> ptr = nullptr;
33*1b191cb5SApple OSS Distributions 			CHECK(test_policy::retain_count == 3);
34*1b191cb5SApple OSS Distributions 		}
35*1b191cb5SApple OSS Distributions 
36*1b191cb5SApple OSS Distributions 		CHECK(test_policy::retain_count == 3); // not decremented
37*1b191cb5SApple OSS Distributions 	}
38*1b191cb5SApple OSS Distributions }
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