xref: /xnu-11215.81.4/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions //
2*d4514f0bSApple OSS Distributions // Tests for
3*d4514f0bSApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_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> const array(10, libkern::allocate_memory_zero);
20*d4514f0bSApple OSS Distributions 		CHECK(array.data() != nullptr);
21*d4514f0bSApple OSS Distributions 		CHECK(array.size() == 10);
22*d4514f0bSApple OSS Distributions 		CHECK(array.begin() == array.data());
23*d4514f0bSApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*d4514f0bSApple OSS Distributions 
25*d4514f0bSApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*d4514f0bSApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*d4514f0bSApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*d4514f0bSApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*d4514f0bSApple OSS Distributions 		}
30*d4514f0bSApple OSS Distributions 	}
31*d4514f0bSApple OSS Distributions }
32*d4514f0bSApple OSS Distributions 
33*d4514f0bSApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero", T_META_TAG_VM_PREFERRED) {
34*d4514f0bSApple OSS Distributions 	tests<T>();
35*d4514f0bSApple OSS Distributions 	tests<T const>();
36*d4514f0bSApple OSS Distributions 	tests<int>();
37*d4514f0bSApple OSS Distributions 	tests<int const>();
38*d4514f0bSApple OSS Distributions }
39