xref: /xnu-8792.81.2/tests/intrusive_shared_ptr_src/detach.cpp (revision 19c3b8c28c31cb8130e034cfb5df6bf9ba342d90)
1*19c3b8c2SApple OSS Distributions //
2*19c3b8c2SApple OSS Distributions // Tests for
3*19c3b8c2SApple OSS Distributions //  pointer detach() noexcept;
4*19c3b8c2SApple OSS Distributions //
5*19c3b8c2SApple OSS Distributions 
6*19c3b8c2SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*19c3b8c2SApple OSS Distributions #include <darwintest.h>
8*19c3b8c2SApple OSS Distributions #include "test_policy.h"
9*19c3b8c2SApple OSS Distributions 
10*19c3b8c2SApple OSS Distributions struct T {
11*19c3b8c2SApple OSS Distributions 	int i;
12*19c3b8c2SApple OSS Distributions };
13*19c3b8c2SApple OSS Distributions 
14*19c3b8c2SApple OSS Distributions template <typename T>
15*19c3b8c2SApple OSS Distributions static void
tests()16*19c3b8c2SApple OSS Distributions tests()
17*19c3b8c2SApple OSS Distributions {
18*19c3b8c2SApple OSS Distributions 	T obj{3};
19*19c3b8c2SApple OSS Distributions 
20*19c3b8c2SApple OSS Distributions 	tracking_policy::reset();
21*19c3b8c2SApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::retain);
22*19c3b8c2SApple OSS Distributions 	T* raw = ptr.detach();
23*19c3b8c2SApple OSS Distributions 	CHECK(raw == &obj);
24*19c3b8c2SApple OSS Distributions 	CHECK(ptr.get() == nullptr); // ptr was set to null
25*19c3b8c2SApple OSS Distributions 	CHECK(tracking_policy::retains == 1);
26*19c3b8c2SApple OSS Distributions 	CHECK(tracking_policy::releases == 0);
27*19c3b8c2SApple OSS Distributions }
28*19c3b8c2SApple OSS Distributions 
29*19c3b8c2SApple OSS Distributions T_DECL(detach, "intrusive_shared_ptr.detach") {
30*19c3b8c2SApple OSS Distributions 	tests<T>();
31*19c3b8c2SApple OSS Distributions 	tests<T const>();
32*19c3b8c2SApple OSS Distributions }
33