xref: /xnu-8796.141.3/tests/safe_allocation_src/ctor.allocate_zero.cpp (revision 1b191cb58250d0705d8a51287127505aa4bc0789)
1*1b191cb5SApple OSS Distributions //
2*1b191cb5SApple OSS Distributions // Tests for
3*1b191cb5SApple OSS Distributions //  explicit safe_allocation(size_t n, allocate_memory_zero_t);
4*1b191cb5SApple OSS Distributions //
5*1b191cb5SApple OSS Distributions 
6*1b191cb5SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*1b191cb5SApple OSS Distributions #include <darwintest.h>
8*1b191cb5SApple OSS Distributions #include "test_utils.h"
9*1b191cb5SApple OSS Distributions 
10*1b191cb5SApple OSS Distributions struct T {
11*1b191cb5SApple OSS Distributions 	int i;
12*1b191cb5SApple OSS Distributions };
13*1b191cb5SApple OSS Distributions 
14*1b191cb5SApple OSS Distributions template <typename T>
15*1b191cb5SApple OSS Distributions static void
tests()16*1b191cb5SApple OSS Distributions tests()
17*1b191cb5SApple OSS Distributions {
18*1b191cb5SApple OSS Distributions 	{
19*1b191cb5SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory_zero);
20*1b191cb5SApple OSS Distributions 		CHECK(array.data() != nullptr);
21*1b191cb5SApple OSS Distributions 		CHECK(array.size() == 10);
22*1b191cb5SApple OSS Distributions 		CHECK(array.begin() == array.data());
23*1b191cb5SApple OSS Distributions 		CHECK(array.end() == array.data() + 10);
24*1b191cb5SApple OSS Distributions 
25*1b191cb5SApple OSS Distributions 		auto const byteArray = reinterpret_cast<uint8_t const*>(array.data());
26*1b191cb5SApple OSS Distributions 		size_t const byteLength = array.size() * sizeof(T);
27*1b191cb5SApple OSS Distributions 		for (size_t i = 0; i != byteLength; ++i) {
28*1b191cb5SApple OSS Distributions 			CHECK(byteArray[i] == 0);
29*1b191cb5SApple OSS Distributions 		}
30*1b191cb5SApple OSS Distributions 	}
31*1b191cb5SApple OSS Distributions }
32*1b191cb5SApple OSS Distributions 
33*1b191cb5SApple OSS Distributions T_DECL(ctor_allocate_zero, "safe_allocation.ctor.allocate_zero") {
34*1b191cb5SApple OSS Distributions 	tests<T>();
35*1b191cb5SApple OSS Distributions 	tests<T const>();
36*1b191cb5SApple OSS Distributions 	tests<int>();
37*1b191cb5SApple OSS Distributions 	tests<int const>();
38*1b191cb5SApple OSS Distributions }
39