xref: /xnu-11417.101.15/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision e3723e1f17661b24996789d8afc084c0c3303b26)
1*e3723e1fSApple OSS Distributions //
2*e3723e1fSApple OSS Distributions // Tests for
3*e3723e1fSApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*e3723e1fSApple OSS Distributions //
5*e3723e1fSApple OSS Distributions 
6*e3723e1fSApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*e3723e1fSApple OSS Distributions #include <darwintest.h>
8*e3723e1fSApple OSS Distributions #include "test_utils.h"
9*e3723e1fSApple OSS Distributions 
10*e3723e1fSApple OSS Distributions struct T {
11*e3723e1fSApple OSS Distributions 	int i;
12*e3723e1fSApple OSS Distributions };
13*e3723e1fSApple OSS Distributions 
14*e3723e1fSApple OSS Distributions template <typename T>
15*e3723e1fSApple OSS Distributions static void
tests()16*e3723e1fSApple OSS Distributions tests()
17*e3723e1fSApple OSS Distributions {
18*e3723e1fSApple OSS Distributions 	{
19*e3723e1fSApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
20*e3723e1fSApple OSS Distributions 		CHECK(array.data() != nullptr);
21*e3723e1fSApple OSS Distributions 		CHECK(array.size() == 10);
22*e3723e1fSApple OSS Distributions 		CHECK(array.begin() == array.data());
23*e3723e1fSApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*e3723e1fSApple OSS Distributions 
25*e3723e1fSApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*e3723e1fSApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*e3723e1fSApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*e3723e1fSApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*e3723e1fSApple OSS Distributions 		}
30*e3723e1fSApple OSS Distributions 	}
31*e3723e1fSApple OSS Distributions }
32*e3723e1fSApple OSS Distributions 
33*e3723e1fSApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero", T_META_TAG_VM_PREFERRED) {
34*e3723e1fSApple OSS Distributions 	tests<T>();
35*e3723e1fSApple OSS Distributions 	tests<T const>();
36*e3723e1fSApple OSS Distributions 	tests<int>();
37*e3723e1fSApple OSS Distributions 	tests<int const>();
38*e3723e1fSApple OSS Distributions }
39