xref: /xnu-8020.121.3/tests/safe_allocation_src/operator.bool.cpp (revision fdd8201d7b966f0c3ea610489d29bd841d358941) !
1*fdd8201dSApple OSS Distributions //
2*fdd8201dSApple OSS Distributions // Tests for
3*fdd8201dSApple OSS Distributions //      explicit operator bool() const;
4*fdd8201dSApple OSS Distributions //
5*fdd8201dSApple OSS Distributions 
6*fdd8201dSApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*fdd8201dSApple OSS Distributions #include <darwintest.h>
8*fdd8201dSApple OSS Distributions #include "test_utils.h"
9*fdd8201dSApple OSS Distributions #include <type_traits>
10*fdd8201dSApple OSS Distributions 
11*fdd8201dSApple OSS Distributions struct T {
12*fdd8201dSApple OSS Distributions 	int i;
13*fdd8201dSApple OSS Distributions };
14*fdd8201dSApple OSS Distributions 
15*fdd8201dSApple OSS Distributions template <typename T>
16*fdd8201dSApple OSS Distributions static void
tests()17*fdd8201dSApple OSS Distributions tests()
18*fdd8201dSApple OSS Distributions {
19*fdd8201dSApple OSS Distributions 	{
20*fdd8201dSApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory);
21*fdd8201dSApple OSS Distributions 		CHECK(static_cast<bool>(array));
22*fdd8201dSApple OSS Distributions 		if (array) {
23*fdd8201dSApple OSS Distributions 		} else {
24*fdd8201dSApple OSS Distributions 			CHECK(FALSE);
25*fdd8201dSApple OSS Distributions 		}
26*fdd8201dSApple OSS Distributions 	}
27*fdd8201dSApple OSS Distributions 	{
28*fdd8201dSApple OSS Distributions 		test_safe_allocation<T> const array = nullptr;
29*fdd8201dSApple OSS Distributions 		CHECK(!static_cast<bool>(array));
30*fdd8201dSApple OSS Distributions 		if (!array) {
31*fdd8201dSApple OSS Distributions 		} else {
32*fdd8201dSApple OSS Distributions 			CHECK(FALSE);
33*fdd8201dSApple OSS Distributions 		}
34*fdd8201dSApple OSS Distributions 	}
35*fdd8201dSApple OSS Distributions 
36*fdd8201dSApple OSS Distributions 	static_assert(!std::is_convertible_v<test_safe_allocation<T>, bool>);
37*fdd8201dSApple OSS Distributions }
38*fdd8201dSApple OSS Distributions 
39*fdd8201dSApple OSS Distributions T_DECL(operator_bool, "safe_allocation.operator.bool") {
40*fdd8201dSApple OSS Distributions 	tests<T>();
41*fdd8201dSApple OSS Distributions 	tests<T const>();
42*fdd8201dSApple OSS Distributions }
43