xref: /xnu-10063.101.15/tests/safe_allocation_src/operator.bool.cpp (revision 94d3b452840153a99b38a3a9659680b2a006908e)
1*94d3b452SApple OSS Distributions //
2*94d3b452SApple OSS Distributions // Tests for
3*94d3b452SApple OSS Distributions //      explicit operator bool() const;
4*94d3b452SApple OSS Distributions //
5*94d3b452SApple OSS Distributions 
6*94d3b452SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*94d3b452SApple OSS Distributions #include <darwintest.h>
8*94d3b452SApple OSS Distributions #include "test_utils.h"
9*94d3b452SApple OSS Distributions #include <type_traits>
10*94d3b452SApple OSS Distributions 
11*94d3b452SApple OSS Distributions struct T {
12*94d3b452SApple OSS Distributions 	int i;
13*94d3b452SApple OSS Distributions };
14*94d3b452SApple OSS Distributions 
15*94d3b452SApple OSS Distributions template <typename T>
16*94d3b452SApple OSS Distributions static void
tests()17*94d3b452SApple OSS Distributions tests()
18*94d3b452SApple OSS Distributions {
19*94d3b452SApple OSS Distributions 	{
20*94d3b452SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory);
21*94d3b452SApple OSS Distributions 		CHECK(static_cast<bool>(array));
22*94d3b452SApple OSS Distributions 		if (array) {
23*94d3b452SApple OSS Distributions 		} else {
24*94d3b452SApple OSS Distributions 			CHECK(FALSE);
25*94d3b452SApple OSS Distributions 		}
26*94d3b452SApple OSS Distributions 	}
27*94d3b452SApple OSS Distributions 	{
28*94d3b452SApple OSS Distributions 		test_safe_allocation<T> const array = nullptr;
29*94d3b452SApple OSS Distributions 		CHECK(!static_cast<bool>(array));
30*94d3b452SApple OSS Distributions 		if (!array) {
31*94d3b452SApple OSS Distributions 		} else {
32*94d3b452SApple OSS Distributions 			CHECK(FALSE);
33*94d3b452SApple OSS Distributions 		}
34*94d3b452SApple OSS Distributions 	}
35*94d3b452SApple OSS Distributions 
36*94d3b452SApple OSS Distributions 	static_assert(!std::is_convertible_v<test_safe_allocation<T>, bool>);
37*94d3b452SApple OSS Distributions }
38*94d3b452SApple OSS Distributions 
39*94d3b452SApple OSS Distributions T_DECL(operator_bool, "safe_allocation.operator.bool") {
40*94d3b452SApple OSS Distributions 	tests<T>();
41*94d3b452SApple OSS Distributions 	tests<T const>();
42*94d3b452SApple OSS Distributions }
43