xref: /xnu-8796.141.3/tests/safe_allocation_src/size.cpp (revision 1b191cb58250d0705d8a51287127505aa4bc0789)
1*1b191cb5SApple OSS Distributions //
2*1b191cb5SApple OSS Distributions // Tests for
3*1b191cb5SApple OSS Distributions //      size_t size() const;
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 #include <cstddef>
10*1b191cb5SApple OSS Distributions #include <type_traits>
11*1b191cb5SApple OSS Distributions #include <utility>
12*1b191cb5SApple OSS Distributions 
13*1b191cb5SApple OSS Distributions struct T {
14*1b191cb5SApple OSS Distributions 	int i;
15*1b191cb5SApple OSS Distributions };
16*1b191cb5SApple OSS Distributions 
17*1b191cb5SApple OSS Distributions template <typename T>
18*1b191cb5SApple OSS Distributions static void
tests()19*1b191cb5SApple OSS Distributions tests()
20*1b191cb5SApple OSS Distributions {
21*1b191cb5SApple OSS Distributions 	{
22*1b191cb5SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory);
23*1b191cb5SApple OSS Distributions 		CHECK(array.size() == 10);
24*1b191cb5SApple OSS Distributions 	}
25*1b191cb5SApple OSS Distributions 	{
26*1b191cb5SApple OSS Distributions 		T* memory = reinterpret_cast<T*>(malloc_allocator::allocate(10 * sizeof(T)));
27*1b191cb5SApple OSS Distributions 		test_safe_allocation<T> const array(memory, 10, libkern::adopt_memory);
28*1b191cb5SApple OSS Distributions 		CHECK(array.size() == 10);
29*1b191cb5SApple OSS Distributions 	}
30*1b191cb5SApple OSS Distributions 	{
31*1b191cb5SApple OSS Distributions 		test_safe_allocation<T> const array(nullptr, 0, libkern::adopt_memory);
32*1b191cb5SApple OSS Distributions 		CHECK(array.size() == 0);
33*1b191cb5SApple OSS Distributions 	}
34*1b191cb5SApple OSS Distributions 	{
35*1b191cb5SApple OSS Distributions 		test_safe_allocation<T> const array;
36*1b191cb5SApple OSS Distributions 		CHECK(array.size() == 0);
37*1b191cb5SApple OSS Distributions 	}
38*1b191cb5SApple OSS Distributions 
39*1b191cb5SApple OSS Distributions 	{
40*1b191cb5SApple OSS Distributions 		using Size = decltype(std::declval<test_safe_allocation<T> const&>().size());
41*1b191cb5SApple OSS Distributions 		static_assert(std::is_same_v<Size, std::size_t>);
42*1b191cb5SApple OSS Distributions 	}
43*1b191cb5SApple OSS Distributions }
44*1b191cb5SApple OSS Distributions 
45*1b191cb5SApple OSS Distributions T_DECL(size, "safe_allocation.size") {
46*1b191cb5SApple OSS Distributions 	tests<T>();
47*1b191cb5SApple OSS Distributions 	tests<T const>();
48*1b191cb5SApple OSS Distributions }
49