xref: /xnu-8020.140.41/tests/intrusive_shared_ptr_src/operator.bool.cpp (revision 27b03b360a988dfd3dfdf34262bb0042026747cc) !
1*27b03b36SApple OSS Distributions //
2*27b03b36SApple OSS Distributions // Tests for
3*27b03b36SApple OSS Distributions //      explicit constexpr operator bool() const noexcept;
4*27b03b36SApple OSS Distributions //
5*27b03b36SApple OSS Distributions 
6*27b03b36SApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h>
7*27b03b36SApple OSS Distributions #include <type_traits>
8*27b03b36SApple OSS Distributions #include <darwintest.h>
9*27b03b36SApple OSS Distributions #include "test_policy.h"
10*27b03b36SApple OSS Distributions 
11*27b03b36SApple OSS Distributions struct T {
12*27b03b36SApple OSS Distributions 	int i;
13*27b03b36SApple OSS Distributions };
14*27b03b36SApple OSS Distributions 
15*27b03b36SApple OSS Distributions template <typename T>
16*27b03b36SApple OSS Distributions static void
tests()17*27b03b36SApple OSS Distributions tests()
18*27b03b36SApple OSS Distributions {
19*27b03b36SApple OSS Distributions 	T obj{3};
20*27b03b36SApple OSS Distributions 
21*27b03b36SApple OSS Distributions 	{
22*27b03b36SApple OSS Distributions 		test_shared_ptr<T> const ptr(&obj, libkern::no_retain);
23*27b03b36SApple OSS Distributions 		CHECK(static_cast<bool>(ptr));
24*27b03b36SApple OSS Distributions 		if (ptr) {
25*27b03b36SApple OSS Distributions 		} else {
26*27b03b36SApple OSS Distributions 			CHECK(false);
27*27b03b36SApple OSS Distributions 		}
28*27b03b36SApple OSS Distributions 	}
29*27b03b36SApple OSS Distributions 
30*27b03b36SApple OSS Distributions 	{
31*27b03b36SApple OSS Distributions 		test_shared_ptr<T> const ptr = nullptr;
32*27b03b36SApple OSS Distributions 		CHECK(!static_cast<bool>(ptr));
33*27b03b36SApple OSS Distributions 		if (!ptr) {
34*27b03b36SApple OSS Distributions 		} else {
35*27b03b36SApple OSS Distributions 			CHECK(false);
36*27b03b36SApple OSS Distributions 		}
37*27b03b36SApple OSS Distributions 	}
38*27b03b36SApple OSS Distributions 
39*27b03b36SApple OSS Distributions 	static_assert(!std::is_convertible_v<test_shared_ptr<T>, bool>);
40*27b03b36SApple OSS Distributions }
41*27b03b36SApple OSS Distributions 
42*27b03b36SApple OSS Distributions T_DECL(operator_bool, "intrusive_shared_ptr.operator.bool") {
43*27b03b36SApple OSS Distributions 	tests<T>();
44*27b03b36SApple OSS Distributions 	tests<T const>();
45*27b03b36SApple OSS Distributions }
46