xref: /xnu-11215.81.4/tests/safe_allocation_src/ctor.nullptr.cpp (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions //
2*d4514f0bSApple OSS Distributions // Tests for
3*d4514f0bSApple OSS Distributions //  safe_allocation(std::nullptr_t);
4*d4514f0bSApple OSS Distributions //
5*d4514f0bSApple OSS Distributions 
6*d4514f0bSApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*d4514f0bSApple OSS Distributions #include <darwintest.h>
8*d4514f0bSApple OSS Distributions #include "test_utils.h"
9*d4514f0bSApple OSS Distributions 
10*d4514f0bSApple OSS Distributions struct T {
11*d4514f0bSApple OSS Distributions 	int i;
12*d4514f0bSApple OSS Distributions };
13*d4514f0bSApple OSS Distributions 
14*d4514f0bSApple OSS Distributions template <typename T>
15*d4514f0bSApple OSS Distributions static void
tests()16*d4514f0bSApple OSS Distributions tests()
17*d4514f0bSApple OSS Distributions {
18*d4514f0bSApple OSS Distributions 	{
19*d4514f0bSApple OSS Distributions 		test_safe_allocation<T> array(nullptr);
20*d4514f0bSApple OSS Distributions 		CHECK(array.data() == nullptr);
21*d4514f0bSApple OSS Distributions 		CHECK(array.size() == 0);
22*d4514f0bSApple OSS Distributions 		CHECK(array.begin() == array.end());
23*d4514f0bSApple OSS Distributions 	}
24*d4514f0bSApple OSS Distributions 	{
25*d4514f0bSApple OSS Distributions 		test_safe_allocation<T> array{nullptr};
26*d4514f0bSApple OSS Distributions 		CHECK(array.data() == nullptr);
27*d4514f0bSApple OSS Distributions 		CHECK(array.size() == 0);
28*d4514f0bSApple OSS Distributions 		CHECK(array.begin() == array.end());
29*d4514f0bSApple OSS Distributions 	}
30*d4514f0bSApple OSS Distributions 	{
31*d4514f0bSApple OSS Distributions 		test_safe_allocation<T> array = nullptr;
32*d4514f0bSApple OSS Distributions 		CHECK(array.data() == nullptr);
33*d4514f0bSApple OSS Distributions 		CHECK(array.size() == 0);
34*d4514f0bSApple OSS Distributions 		CHECK(array.begin() == array.end());
35*d4514f0bSApple OSS Distributions 	}
36*d4514f0bSApple OSS Distributions 	{
37*d4514f0bSApple OSS Distributions 		auto f = [](test_safe_allocation<T> array) {
38*d4514f0bSApple OSS Distributions 			    CHECK(array.data() == nullptr);
39*d4514f0bSApple OSS Distributions 			    CHECK(array.size() == 0);
40*d4514f0bSApple OSS Distributions 			    CHECK(array.begin() == array.end());
41*d4514f0bSApple OSS Distributions 		    };
42*d4514f0bSApple OSS Distributions 		f(nullptr);
43*d4514f0bSApple OSS Distributions 	}
44*d4514f0bSApple OSS Distributions }
45*d4514f0bSApple OSS Distributions 
46*d4514f0bSApple OSS Distributions T_DECL(ctor_nullptr, "safe_allocation.ctor.nullptr", T_META_TAG_VM_PREFERRED) {
47*d4514f0bSApple OSS Distributions 	tests<T>();
48*d4514f0bSApple OSS Distributions 	tests<T const>();
49*d4514f0bSApple OSS Distributions }
50