xref: /xnu-8796.121.2/tests/intrusive_shared_ptr_src/operator.bool.cpp (revision c54f35ca767986246321eb901baf8f5ff7923f6a)
1*c54f35caSApple OSS Distributions //
2*c54f35caSApple OSS Distributions // Tests for
3*c54f35caSApple OSS Distributions //      explicit constexpr operator bool() const noexcept;
4*c54f35caSApple OSS Distributions //
5*c54f35caSApple OSS Distributions 
6*c54f35caSApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*c54f35caSApple OSS Distributions #include <type_traits>
8*c54f35caSApple OSS Distributions #include <darwintest.h>
9*c54f35caSApple OSS Distributions #include "test_policy.h"
10*c54f35caSApple OSS Distributions 
11*c54f35caSApple OSS Distributions struct T {
12*c54f35caSApple OSS Distributions 	int i;
13*c54f35caSApple OSS Distributions };
14*c54f35caSApple OSS Distributions 
15*c54f35caSApple OSS Distributions template <typename T>
16*c54f35caSApple OSS Distributions static void
tests()17*c54f35caSApple OSS Distributions tests()
18*c54f35caSApple OSS Distributions {
19*c54f35caSApple OSS Distributions 	T obj{3};
20*c54f35caSApple OSS Distributions 
21*c54f35caSApple OSS Distributions 	{
22*c54f35caSApple OSS Distributions 		test_shared_ptr<T> const ptr(&obj, libkern::no_retain);
23*c54f35caSApple OSS Distributions 		CHECK(static_cast<bool>(ptr));
24*c54f35caSApple OSS Distributions 		if (ptr) {
25*c54f35caSApple OSS Distributions 		} else {
26*c54f35caSApple OSS Distributions 			CHECK(false);
27*c54f35caSApple OSS Distributions 		}
28*c54f35caSApple OSS Distributions 	}
29*c54f35caSApple OSS Distributions 
30*c54f35caSApple OSS Distributions 	{
31*c54f35caSApple OSS Distributions 		test_shared_ptr<T> const ptr = nullptr;
32*c54f35caSApple OSS Distributions 		CHECK(!static_cast<bool>(ptr));
33*c54f35caSApple OSS Distributions 		if (!ptr) {
34*c54f35caSApple OSS Distributions 		} else {
35*c54f35caSApple OSS Distributions 			CHECK(false);
36*c54f35caSApple OSS Distributions 		}
37*c54f35caSApple OSS Distributions 	}
38*c54f35caSApple OSS Distributions 
39*c54f35caSApple OSS Distributions 	static_assert(!std::is_convertible_v<test_shared_ptr<T>, bool>);
40*c54f35caSApple OSS Distributions }
41*c54f35caSApple OSS Distributions 
42*c54f35caSApple OSS Distributions T_DECL(operator_bool, "intrusive_shared_ptr.operator.bool") {
43*c54f35caSApple OSS Distributions 	tests<T>();
44*c54f35caSApple OSS Distributions 	tests<T const>();
45*c54f35caSApple OSS Distributions }
46