xref: /xnu-11215.61.5/tests/intrusive_shared_ptr_src/detach.cpp (revision 4f1223e81cd707a65cc109d0b8ad6653699da3c4)
1*4f1223e8SApple OSS Distributions //
2*4f1223e8SApple OSS Distributions // Tests for
3*4f1223e8SApple OSS Distributions //  pointer detach() noexcept;
4*4f1223e8SApple OSS Distributions //
5*4f1223e8SApple OSS Distributions 
6*4f1223e8SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*4f1223e8SApple OSS Distributions #include <darwintest.h>
8*4f1223e8SApple OSS Distributions #include "test_policy.h"
9*4f1223e8SApple OSS Distributions 
10*4f1223e8SApple OSS Distributions struct T {
11*4f1223e8SApple OSS Distributions 	int i;
12*4f1223e8SApple OSS Distributions };
13*4f1223e8SApple OSS Distributions 
14*4f1223e8SApple OSS Distributions template <typename T>
15*4f1223e8SApple OSS Distributions static void
tests()16*4f1223e8SApple OSS Distributions tests()
17*4f1223e8SApple OSS Distributions {
18*4f1223e8SApple OSS Distributions 	T obj{3};
19*4f1223e8SApple OSS Distributions 
20*4f1223e8SApple OSS Distributions 	tracking_policy::reset();
21*4f1223e8SApple OSS Distributions 	tracked_shared_ptr<T> ptr(&obj, libkern::retain);
22*4f1223e8SApple OSS Distributions 	T* raw = ptr.detach();
23*4f1223e8SApple OSS Distributions 	CHECK(raw == &obj);
24*4f1223e8SApple OSS Distributions 	CHECK(ptr.get() == nullptr); // ptr was set to null
25*4f1223e8SApple OSS Distributions 	CHECK(tracking_policy::retains == 1);
26*4f1223e8SApple OSS Distributions 	CHECK(tracking_policy::releases == 0);
27*4f1223e8SApple OSS Distributions }
28*4f1223e8SApple OSS Distributions 
29*4f1223e8SApple OSS Distributions T_DECL(detach, "intrusive_shared_ptr.detach", T_META_TAG_VM_PREFERRED) {
30*4f1223e8SApple OSS Distributions 	tests<T>();
31*4f1223e8SApple OSS Distributions 	tests<T const>();
32*4f1223e8SApple OSS Distributions }
33