xref: /xnu-8020.101.4/tests/intrusive_shared_ptr_src/operator.bool.cpp (revision e7776783b89a353188416a9a346c6cdb4928faad)
1*e7776783SApple OSS Distributions //
2*e7776783SApple OSS Distributions // Tests for
3*e7776783SApple OSS Distributions //      explicit constexpr operator bool() const noexcept;
4*e7776783SApple OSS Distributions //
5*e7776783SApple OSS Distributions 
6*e7776783SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*e7776783SApple OSS Distributions #include <type_traits>
8*e7776783SApple OSS Distributions #include <darwintest.h>
9*e7776783SApple OSS Distributions #include "test_policy.h"
10*e7776783SApple OSS Distributions 
11*e7776783SApple OSS Distributions struct T {
12*e7776783SApple OSS Distributions 	int i;
13*e7776783SApple OSS Distributions };
14*e7776783SApple OSS Distributions 
15*e7776783SApple OSS Distributions template <typename T>
16*e7776783SApple OSS Distributions static void
tests()17*e7776783SApple OSS Distributions tests()
18*e7776783SApple OSS Distributions {
19*e7776783SApple OSS Distributions 	T obj{3};
20*e7776783SApple OSS Distributions 
21*e7776783SApple OSS Distributions 	{
22*e7776783SApple OSS Distributions 		test_shared_ptr<T> const ptr(&obj, libkern::no_retain);
23*e7776783SApple OSS Distributions 		CHECK(static_cast<bool>(ptr));
24*e7776783SApple OSS Distributions 		if (ptr) {
25*e7776783SApple OSS Distributions 		} else {
26*e7776783SApple OSS Distributions 			CHECK(false);
27*e7776783SApple OSS Distributions 		}
28*e7776783SApple OSS Distributions 	}
29*e7776783SApple OSS Distributions 
30*e7776783SApple OSS Distributions 	{
31*e7776783SApple OSS Distributions 		test_shared_ptr<T> const ptr = nullptr;
32*e7776783SApple OSS Distributions 		CHECK(!static_cast<bool>(ptr));
33*e7776783SApple OSS Distributions 		if (!ptr) {
34*e7776783SApple OSS Distributions 		} else {
35*e7776783SApple OSS Distributions 			CHECK(false);
36*e7776783SApple OSS Distributions 		}
37*e7776783SApple OSS Distributions 	}
38*e7776783SApple OSS Distributions 
39*e7776783SApple OSS Distributions 	static_assert(!std::is_convertible_v<test_shared_ptr<T>, bool>);
40*e7776783SApple OSS Distributions }
41*e7776783SApple OSS Distributions 
42*e7776783SApple OSS Distributions T_DECL(operator_bool, "intrusive_shared_ptr.operator.bool") {
43*e7776783SApple OSS Distributions 	tests<T>();
44*e7776783SApple OSS Distributions 	tests<T const>();
45*e7776783SApple OSS Distributions }
46