xref: /xnu-11417.101.15/tests/intrusive_shared_ptr_src/detach.cpp (revision e3723e1f17661b24996789d8afc084c0c3303b26)
1*e3723e1fSApple OSS Distributions //
2*e3723e1fSApple OSS Distributions // Tests for
3*e3723e1fSApple OSS Distributions //  pointer detach() noexcept;
4*e3723e1fSApple OSS Distributions //
5*e3723e1fSApple OSS Distributions 
6*e3723e1fSApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*e3723e1fSApple OSS Distributions #include <darwintest.h>
8*e3723e1fSApple OSS Distributions #include "test_policy.h"
9*e3723e1fSApple OSS Distributions 
10*e3723e1fSApple OSS Distributions struct T {
11*e3723e1fSApple OSS Distributions 	int i;
12*e3723e1fSApple OSS Distributions };
13*e3723e1fSApple OSS Distributions 
14*e3723e1fSApple OSS Distributions template <typename T>
15*e3723e1fSApple OSS Distributions static void
tests()16*e3723e1fSApple OSS Distributions tests()
17*e3723e1fSApple OSS Distributions {
18*e3723e1fSApple OSS Distributions 	T obj{3};
19*e3723e1fSApple OSS Distributions 
20*e3723e1fSApple OSS Distributions 	tracking_policy::reset();
21*e3723e1fSApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::retain);
22*e3723e1fSApple OSS Distributions 	T* raw = ptr.detach();
23*e3723e1fSApple OSS Distributions 	CHECK(raw == &obj);
24*e3723e1fSApple OSS Distributions 	CHECK(ptr.get() == nullptr); // ptr was set to null
25*e3723e1fSApple OSS Distributions 	CHECK(tracking_policy::retains == 1);
26*e3723e1fSApple OSS Distributions 	CHECK(tracking_policy::releases == 0);
27*e3723e1fSApple OSS Distributions }
28*e3723e1fSApple OSS Distributions 
29*e3723e1fSApple OSS Distributions T_DECL(detach, "intrusive_shared_ptr.detach", T_META_TAG_VM_PREFERRED) {
30*e3723e1fSApple OSS Distributions 	tests<T>();
31*e3723e1fSApple OSS Distributions 	tests<T const>();
32*e3723e1fSApple OSS Distributions }
33