xref: /xnu-8020.101.4/tests/safe_allocation_src/operator.bool.cpp (revision e7776783b89a353188416a9a346c6cdb4928faad)
1*e7776783SApple OSS Distributions //
2*e7776783SApple OSS Distributions // Tests for
3*e7776783SApple OSS Distributions //      explicit operator bool() const;
4*e7776783SApple OSS Distributions //
5*e7776783SApple OSS Distributions 
6*e7776783SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*e7776783SApple OSS Distributions #include <darwintest.h>
8*e7776783SApple OSS Distributions #include "test_utils.h"
9*e7776783SApple OSS Distributions #include <type_traits>
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 	{
20*e7776783SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory);
21*e7776783SApple OSS Distributions 		CHECK(static_cast<bool>(array));
22*e7776783SApple OSS Distributions 		if (array) {
23*e7776783SApple OSS Distributions 		} else {
24*e7776783SApple OSS Distributions 			CHECK(FALSE);
25*e7776783SApple OSS Distributions 		}
26*e7776783SApple OSS Distributions 	}
27*e7776783SApple OSS Distributions 	{
28*e7776783SApple OSS Distributions 		test_safe_allocation<T> const array = nullptr;
29*e7776783SApple OSS Distributions 		CHECK(!static_cast<bool>(array));
30*e7776783SApple OSS Distributions 		if (!array) {
31*e7776783SApple OSS Distributions 		} else {
32*e7776783SApple OSS Distributions 			CHECK(FALSE);
33*e7776783SApple OSS Distributions 		}
34*e7776783SApple OSS Distributions 	}
35*e7776783SApple OSS Distributions 
36*e7776783SApple OSS Distributions 	static_assert(!std::is_convertible_v<test_safe_allocation<T>, bool>);
37*e7776783SApple OSS Distributions }
38*e7776783SApple OSS Distributions 
39*e7776783SApple OSS Distributions T_DECL(operator_bool, "safe_allocation.operator.bool") {
40*e7776783SApple OSS Distributions 	tests<T>();
41*e7776783SApple OSS Distributions 	tests<T const>();
42*e7776783SApple OSS Distributions }
43