xref: /xnu-8792.61.2/tests/safe_allocation_src/operator.bool.cpp (revision 42e220869062b56f8d7d0726fd4c88954f87902c)
1*42e22086SApple OSS Distributions //
2*42e22086SApple OSS Distributions // Tests for
3*42e22086SApple OSS Distributions //      explicit operator bool() const;
4*42e22086SApple OSS Distributions //
5*42e22086SApple OSS Distributions 
6*42e22086SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*42e22086SApple OSS Distributions #include <darwintest.h>
8*42e22086SApple OSS Distributions #include "test_utils.h"
9*42e22086SApple OSS Distributions #include <type_traits>
10*42e22086SApple OSS Distributions 
11*42e22086SApple OSS Distributions struct T {
12*42e22086SApple OSS Distributions 	int i;
13*42e22086SApple OSS Distributions };
14*42e22086SApple OSS Distributions 
15*42e22086SApple OSS Distributions template <typename T>
16*42e22086SApple OSS Distributions static void
tests()17*42e22086SApple OSS Distributions tests()
18*42e22086SApple OSS Distributions {
19*42e22086SApple OSS Distributions 	{
20*42e22086SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory);
21*42e22086SApple OSS Distributions 		CHECK(static_cast<bool>(array));
22*42e22086SApple OSS Distributions 		if (array) {
23*42e22086SApple OSS Distributions 		} else {
24*42e22086SApple OSS Distributions 			CHECK(FALSE);
25*42e22086SApple OSS Distributions 		}
26*42e22086SApple OSS Distributions 	}
27*42e22086SApple OSS Distributions 	{
28*42e22086SApple OSS Distributions 		test_safe_allocation<T> const array = nullptr;
29*42e22086SApple OSS Distributions 		CHECK(!static_cast<bool>(array));
30*42e22086SApple OSS Distributions 		if (!array) {
31*42e22086SApple OSS Distributions 		} else {
32*42e22086SApple OSS Distributions 			CHECK(FALSE);
33*42e22086SApple OSS Distributions 		}
34*42e22086SApple OSS Distributions 	}
35*42e22086SApple OSS Distributions 
36*42e22086SApple OSS Distributions 	static_assert(!std::is_convertible_v<test_safe_allocation<T>, bool>);
37*42e22086SApple OSS Distributions }
38*42e22086SApple OSS Distributions 
39*42e22086SApple OSS Distributions T_DECL(operator_bool, "safe_allocation.operator.bool") {
40*42e22086SApple OSS Distributions 	tests<T>();
41*42e22086SApple OSS Distributions 	tests<T const>();
42*42e22086SApple OSS Distributions }
43