xref: /xnu-11215.61.5/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision 4f1223e81cd707a65cc109d0b8ad6653699da3c4)
1*4f1223e8SApple OSS Distributions //
2*4f1223e8SApple OSS Distributions // Tests for
3*4f1223e8SApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*4f1223e8SApple OSS Distributions //
5*4f1223e8SApple OSS Distributions 
6*4f1223e8SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*4f1223e8SApple OSS Distributions #include <darwintest.h>
8*4f1223e8SApple OSS Distributions #include "test_utils.h"
9*4f1223e8SApple OSS Distributions 
10*4f1223e8SApple OSS Distributions struct T {
11*4f1223e8SApple OSS Distributions 	int i;
12*4f1223e8SApple OSS Distributions };
13*4f1223e8SApple OSS Distributions 
14*4f1223e8SApple OSS Distributions template <typename T>
15*4f1223e8SApple OSS Distributions static void
tests()16*4f1223e8SApple OSS Distributions tests()
17*4f1223e8SApple OSS Distributions {
18*4f1223e8SApple OSS Distributions 	{
19*4f1223e8SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
20*4f1223e8SApple OSS Distributions 		CHECK(array.data() != nullptr);
21*4f1223e8SApple OSS Distributions 		CHECK(array.size() == 10);
22*4f1223e8SApple OSS Distributions 		CHECK(array.begin() == array.data());
23*4f1223e8SApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*4f1223e8SApple OSS Distributions 
25*4f1223e8SApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*4f1223e8SApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*4f1223e8SApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*4f1223e8SApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*4f1223e8SApple OSS Distributions 		}
30*4f1223e8SApple OSS Distributions 	}
31*4f1223e8SApple OSS Distributions }
32*4f1223e8SApple OSS Distributions 
33*4f1223e8SApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero", T_META_TAG_VM_PREFERRED) {
34*4f1223e8SApple OSS Distributions 	tests<T>();
35*4f1223e8SApple OSS Distributions 	tests<T const>();
36*4f1223e8SApple OSS Distributions 	tests<int>();
37*4f1223e8SApple OSS Distributions 	tests<int const>();
38*4f1223e8SApple OSS Distributions }
39