xref: /xnu-10063.101.15/tests/safe_allocation_src/size.cpp (revision 94d3b452840153a99b38a3a9659680b2a006908e)
1*94d3b452SApple OSS Distributions //
2*94d3b452SApple OSS Distributions // Tests for
3*94d3b452SApple OSS Distributions //      size_t size() const;
4*94d3b452SApple OSS Distributions //
5*94d3b452SApple OSS Distributions 
6*94d3b452SApple OSS Distributions #include <libkern/c++/safe_allocation.h>
7*94d3b452SApple OSS Distributions #include <darwintest.h>
8*94d3b452SApple OSS Distributions #include "test_utils.h"
9*94d3b452SApple OSS Distributions #include <cstddef>
10*94d3b452SApple OSS Distributions #include <type_traits>
11*94d3b452SApple OSS Distributions #include <utility>
12*94d3b452SApple OSS Distributions 
13*94d3b452SApple OSS Distributions struct T {
14*94d3b452SApple OSS Distributions 	int i;
15*94d3b452SApple OSS Distributions };
16*94d3b452SApple OSS Distributions 
17*94d3b452SApple OSS Distributions template <typename T>
18*94d3b452SApple OSS Distributions static void
tests()19*94d3b452SApple OSS Distributions tests()
20*94d3b452SApple OSS Distributions {
21*94d3b452SApple OSS Distributions 	{
22*94d3b452SApple OSS Distributions 		test_safe_allocation<T> const array(10, libkern::allocate_memory);
23*94d3b452SApple OSS Distributions 		CHECK(array.size() == 10);
24*94d3b452SApple OSS Distributions 	}
25*94d3b452SApple OSS Distributions 	{
26*94d3b452SApple OSS Distributions 		T* memory = reinterpret_cast<T*>(malloc_allocator::allocate(10 * sizeof(T)));
27*94d3b452SApple OSS Distributions 		test_safe_allocation<T> const array(memory, 10, libkern::adopt_memory);
28*94d3b452SApple OSS Distributions 		CHECK(array.size() == 10);
29*94d3b452SApple OSS Distributions 	}
30*94d3b452SApple OSS Distributions 	{
31*94d3b452SApple OSS Distributions 		test_safe_allocation<T> const array(nullptr, 0, libkern::adopt_memory);
32*94d3b452SApple OSS Distributions 		CHECK(array.size() == 0);
33*94d3b452SApple OSS Distributions 	}
34*94d3b452SApple OSS Distributions 	{
35*94d3b452SApple OSS Distributions 		test_safe_allocation<T> const array;
36*94d3b452SApple OSS Distributions 		CHECK(array.size() == 0);
37*94d3b452SApple OSS Distributions 	}
38*94d3b452SApple OSS Distributions 
39*94d3b452SApple OSS Distributions 	{
40*94d3b452SApple OSS Distributions 		using Size = decltype(std::declval<test_safe_allocation<T> const&>().size());
41*94d3b452SApple OSS Distributions 		static_assert(std::is_same_v<Size, std::size_t>);
42*94d3b452SApple OSS Distributions 	}
43*94d3b452SApple OSS Distributions }
44*94d3b452SApple OSS Distributions 
45*94d3b452SApple OSS Distributions T_DECL(size, "safe_allocation.size") {
46*94d3b452SApple OSS Distributions 	tests<T>();
47*94d3b452SApple OSS Distributions 	tests<T const>();
48*94d3b452SApple OSS Distributions }
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