xref: /xnu-12377.81.4/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision 043036a2b3718f7f0be807e2870f8f47d3fa0796)
1*043036a2SApple OSS Distributions //
2*043036a2SApple OSS Distributions // Tests for
3*043036a2SApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*043036a2SApple OSS Distributions //
5*043036a2SApple OSS Distributions 
6*043036a2SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*043036a2SApple OSS Distributions #include <darwintest.h>
8*043036a2SApple OSS Distributions #include "test_utils.h"
9*043036a2SApple OSS Distributions 
10*043036a2SApple OSS Distributions struct T {
11*043036a2SApple OSS Distributions 	int i;
12*043036a2SApple OSS Distributions };
13*043036a2SApple OSS Distributions 
14*043036a2SApple OSS Distributions template <typename T>
15*043036a2SApple OSS Distributions static void
tests()16*043036a2SApple OSS Distributions tests()
17*043036a2SApple OSS Distributions {
18*043036a2SApple OSS Distributions 	{
19*043036a2SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
20*043036a2SApple OSS Distributions 		CHECK(array.data() != nullptr);
21*043036a2SApple OSS Distributions 		CHECK(array.size() == 10);
22*043036a2SApple OSS Distributions 		CHECK(array.begin() == array.data());
23*043036a2SApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*043036a2SApple OSS Distributions 
25*043036a2SApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*043036a2SApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*043036a2SApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*043036a2SApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*043036a2SApple OSS Distributions 		}
30*043036a2SApple OSS Distributions 	}
31*043036a2SApple OSS Distributions }
32*043036a2SApple OSS Distributions 
33*043036a2SApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero", T_META_TAG_VM_PREFERRED) {
34*043036a2SApple OSS Distributions 	tests<T>();
35*043036a2SApple OSS Distributions 	tests<T const>();
36*043036a2SApple OSS Distributions 	tests<int>();
37*043036a2SApple OSS Distributions 	tests<int const>();
38*043036a2SApple OSS Distributions }
39