xref: /xnu-11215.81.4/tests/intrusive_shared_ptr_src/detach.cpp (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions //
2*d4514f0bSApple OSS Distributions // Tests for
3*d4514f0bSApple OSS Distributions //  pointer detach() noexcept;
4*d4514f0bSApple OSS Distributions //
5*d4514f0bSApple OSS Distributions 
6*d4514f0bSApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*d4514f0bSApple OSS Distributions #include <darwintest.h>
8*d4514f0bSApple OSS Distributions #include "test_policy.h"
9*d4514f0bSApple OSS Distributions 
10*d4514f0bSApple OSS Distributions struct T {
11*d4514f0bSApple OSS Distributions 	int i;
12*d4514f0bSApple OSS Distributions };
13*d4514f0bSApple OSS Distributions 
14*d4514f0bSApple OSS Distributions template <typename T>
15*d4514f0bSApple OSS Distributions static void
tests()16*d4514f0bSApple OSS Distributions tests()
17*d4514f0bSApple OSS Distributions {
18*d4514f0bSApple OSS Distributions 	T obj{3};
19*d4514f0bSApple OSS Distributions 
20*d4514f0bSApple OSS Distributions 	tracking_policy::reset();
21*d4514f0bSApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::retain);
22*d4514f0bSApple OSS Distributions 	T* raw = ptr.detach();
23*d4514f0bSApple OSS Distributions 	CHECK(raw == &obj);
24*d4514f0bSApple OSS Distributions 	CHECK(ptr.get() == nullptr); // ptr was set to null
25*d4514f0bSApple OSS Distributions 	CHECK(tracking_policy::retains == 1);
26*d4514f0bSApple OSS Distributions 	CHECK(tracking_policy::releases == 0);
27*d4514f0bSApple OSS Distributions }
28*d4514f0bSApple OSS Distributions 
29*d4514f0bSApple OSS Distributions T_DECL(detach, "intrusive_shared_ptr.detach", T_META_TAG_VM_PREFERRED) {
30*d4514f0bSApple OSS Distributions 	tests<T>();
31*d4514f0bSApple OSS Distributions 	tests<T const>();
32*d4514f0bSApple OSS Distributions }
33