xref: /xnu-11417.140.69/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1*43a90889SApple OSS Distributions //
2*43a90889SApple OSS Distributions // Tests for
3*43a90889SApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*43a90889SApple OSS Distributions //
5*43a90889SApple OSS Distributions 
6*43a90889SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*43a90889SApple OSS Distributions #include <darwintest.h>
8*43a90889SApple OSS Distributions #include "test_utils.h"
9*43a90889SApple OSS Distributions 
10*43a90889SApple OSS Distributions struct T {
11*43a90889SApple OSS Distributions 	int i;
12*43a90889SApple OSS Distributions };
13*43a90889SApple OSS Distributions 
14*43a90889SApple OSS Distributions template <typename T>
15*43a90889SApple OSS Distributions static void
tests()16*43a90889SApple OSS Distributions tests()
17*43a90889SApple OSS Distributions {
18*43a90889SApple OSS Distributions 	{
19*43a90889SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
20*43a90889SApple OSS Distributions 		CHECK(array.data() != nullptr);
21*43a90889SApple OSS Distributions 		CHECK(array.size() == 10);
22*43a90889SApple OSS Distributions 		CHECK(array.begin() == array.data());
23*43a90889SApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*43a90889SApple OSS Distributions 
25*43a90889SApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*43a90889SApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*43a90889SApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*43a90889SApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*43a90889SApple OSS Distributions 		}
30*43a90889SApple OSS Distributions 	}
31*43a90889SApple OSS Distributions }
32*43a90889SApple OSS Distributions 
33*43a90889SApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero", T_META_TAG_VM_PREFERRED) {
34*43a90889SApple OSS Distributions 	tests<T>();
35*43a90889SApple OSS Distributions 	tests<T const>();
36*43a90889SApple OSS Distributions 	tests<int>();
37*43a90889SApple OSS Distributions 	tests<int const>();
38*43a90889SApple OSS Distributions }
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