xref: /xnu-11417.121.6/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision a1e26a70f38d1d7daa7b49b258e2f8538ad81650) !
1*a1e26a70SApple OSS Distributions //
2*a1e26a70SApple OSS Distributions // Tests for
3*a1e26a70SApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*a1e26a70SApple OSS Distributions //
5*a1e26a70SApple OSS Distributions 
6*a1e26a70SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*a1e26a70SApple OSS Distributions #include <darwintest.h>
8*a1e26a70SApple OSS Distributions #include "test_utils.h"
9*a1e26a70SApple OSS Distributions 
10*a1e26a70SApple OSS Distributions struct T {
11*a1e26a70SApple OSS Distributions 	int i;
12*a1e26a70SApple OSS Distributions };
13*a1e26a70SApple OSS Distributions 
14*a1e26a70SApple OSS Distributions template <typename T>
15*a1e26a70SApple OSS Distributions static void
tests()16*a1e26a70SApple OSS Distributions tests()
17*a1e26a70SApple OSS Distributions {
18*a1e26a70SApple OSS Distributions 	{
19*a1e26a70SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
20*a1e26a70SApple OSS Distributions 		CHECK(array.data() != nullptr);
21*a1e26a70SApple OSS Distributions 		CHECK(array.size() == 10);
22*a1e26a70SApple OSS Distributions 		CHECK(array.begin() == array.data());
23*a1e26a70SApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*a1e26a70SApple OSS Distributions 
25*a1e26a70SApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*a1e26a70SApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*a1e26a70SApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*a1e26a70SApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*a1e26a70SApple OSS Distributions 		}
30*a1e26a70SApple OSS Distributions 	}
31*a1e26a70SApple OSS Distributions }
32*a1e26a70SApple OSS Distributions 
33*a1e26a70SApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero", T_META_TAG_VM_PREFERRED) {
34*a1e26a70SApple OSS Distributions 	tests<T>();
35*a1e26a70SApple OSS Distributions 	tests<T const>();
36*a1e26a70SApple OSS Distributions 	tests<int>();
37*a1e26a70SApple OSS Distributions 	tests<int const>();
38*a1e26a70SApple OSS Distributions }
39