xref: /xnu-8020.101.4/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision e7776783b89a353188416a9a346c6cdb4928faad) !
1*e7776783SApple OSS Distributions //
2*e7776783SApple OSS Distributions // Tests for
3*e7776783SApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*e7776783SApple OSS Distributions //
5*e7776783SApple OSS Distributions 
6*e7776783SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*e7776783SApple OSS Distributions #include <darwintest.h>
8*e7776783SApple OSS Distributions #include "test_utils.h"
9*e7776783SApple OSS Distributions #include <algorithm>
10*e7776783SApple OSS Distributions 
11*e7776783SApple OSS Distributions struct T {
12*e7776783SApple OSS Distributions 	int i;
13*e7776783SApple OSS Distributions };
14*e7776783SApple OSS Distributions 
15*e7776783SApple OSS Distributions template <typename T>
16*e7776783SApple OSS Distributions static void
tests()17*e7776783SApple OSS Distributions tests()
18*e7776783SApple OSS Distributions {
19*e7776783SApple OSS Distributions 	{
20*e7776783SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
21*e7776783SApple OSS Distributions 		CHECK(array.data() != nullptr);
22*e7776783SApple OSS Distributions 		CHECK(array.size() == 10);
23*e7776783SApple OSS Distributions 		CHECK(array.begin() == array.data());
24*e7776783SApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
25*e7776783SApple OSS Distributions 
26*e7776783SApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
27*e7776783SApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
28*e7776783SApple OSS Distributions 		CHECK(std::all_of(byteArray, byteArray + byteLength, [](const auto& elem){
29*e7776783SApple OSS Distributions 			return elem == 0;
30*e7776783SApple OSS Distributions 		}));
31*e7776783SApple OSS Distributions 	}
32*e7776783SApple OSS Distributions }
33*e7776783SApple OSS Distributions 
34*e7776783SApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero") {
35*e7776783SApple OSS Distributions 	tests<T>();
36*e7776783SApple OSS Distributions 	tests<T const>();
37*e7776783SApple OSS Distributions 	tests<int>();
38*e7776783SApple OSS Distributions 	tests<int const>();
39*e7776783SApple OSS Distributions }
40