xref: /xnu-11417.121.6/tests/intrusive_shared_ptr_src/detach.cpp (revision a1e26a70f38d1d7daa7b49b258e2f8538ad81650)
1*a1e26a70SApple OSS Distributions //
2*a1e26a70SApple OSS Distributions // Tests for
3*a1e26a70SApple OSS Distributions //  pointer detach() noexcept;
4*a1e26a70SApple OSS Distributions //
5*a1e26a70SApple OSS Distributions 
6*a1e26a70SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*a1e26a70SApple OSS Distributions #include <darwintest.h>
8*a1e26a70SApple OSS Distributions #include "test_policy.h"
9*a1e26a70SApple OSS Distributions 
10*a1e26a70SApple OSS Distributions struct T {
11*a1e26a70SApple OSS Distributions 	int i;
12*a1e26a70SApple OSS Distributions };
13*a1e26a70SApple OSS Distributions 
14*a1e26a70SApple OSS Distributions template <typename T>
15*a1e26a70SApple OSS Distributions static void
tests()16*a1e26a70SApple OSS Distributions tests()
17*a1e26a70SApple OSS Distributions {
18*a1e26a70SApple OSS Distributions 	T obj{3};
19*a1e26a70SApple OSS Distributions 
20*a1e26a70SApple OSS Distributions 	tracking_policy::reset();
21*a1e26a70SApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::retain);
22*a1e26a70SApple OSS Distributions 	T* raw = ptr.detach();
23*a1e26a70SApple OSS Distributions 	CHECK(raw == &obj);
24*a1e26a70SApple OSS Distributions 	CHECK(ptr.get() == nullptr); // ptr was set to null
25*a1e26a70SApple OSS Distributions 	CHECK(tracking_policy::retains == 1);
26*a1e26a70SApple OSS Distributions 	CHECK(tracking_policy::releases == 0);
27*a1e26a70SApple OSS Distributions }
28*a1e26a70SApple OSS Distributions 
29*a1e26a70SApple OSS Distributions T_DECL(detach, "intrusive_shared_ptr.detach", T_META_TAG_VM_PREFERRED) {
30*a1e26a70SApple OSS Distributions 	tests<T>();
31*a1e26a70SApple OSS Distributions 	tests<T const>();
32*a1e26a70SApple OSS Distributions }
33