xref: /xnu-8019.80.24/tests/bounded_array_ref_src/operator.subscript.cpp (revision a325d9c4a84054e40bbe985afedcb50ab80993ea)
1*a325d9c4SApple OSS Distributions //
2*a325d9c4SApple OSS Distributions // Tests for
3*a325d9c4SApple OSS Distributions //  T& operator[](ptrdiff_t n) const;
4*a325d9c4SApple OSS Distributions //
5*a325d9c4SApple OSS Distributions 
6*a325d9c4SApple OSS Distributions #include <libkern/c++/bounded_array_ref.h>
7*a325d9c4SApple OSS Distributions #include "test_policy.h"
8*a325d9c4SApple OSS Distributions #include <darwintest.h>
9*a325d9c4SApple OSS Distributions #include <darwintest_utils.h>
10*a325d9c4SApple OSS Distributions 
11*a325d9c4SApple OSS Distributions struct T { int i; };
12*a325d9c4SApple OSS Distributions inline bool
operator ==(T const & a,T const & b)13*a325d9c4SApple OSS Distributions operator==(T const& a, T const& b)
14*a325d9c4SApple OSS Distributions {
15*a325d9c4SApple OSS Distributions 	return a.i == b.i;
16*a325d9c4SApple OSS Distributions };
17*a325d9c4SApple OSS Distributions 
18*a325d9c4SApple OSS Distributions template <typename T>
19*a325d9c4SApple OSS Distributions static void
tests()20*a325d9c4SApple OSS Distributions tests()
21*a325d9c4SApple OSS Distributions {
22*a325d9c4SApple OSS Distributions 	{
23*a325d9c4SApple OSS Distributions 		T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
24*a325d9c4SApple OSS Distributions 		test_bounded_array_ref<T> view(array);
25*a325d9c4SApple OSS Distributions 		CHECK(view[0] == T{0});
26*a325d9c4SApple OSS Distributions 		CHECK(view[1] == T{1});
27*a325d9c4SApple OSS Distributions 		CHECK(view[2] == T{2});
28*a325d9c4SApple OSS Distributions 		CHECK(view[3] == T{3});
29*a325d9c4SApple OSS Distributions 		CHECK(view[4] == T{4});
30*a325d9c4SApple OSS Distributions 	}
31*a325d9c4SApple OSS Distributions }
32*a325d9c4SApple OSS Distributions 
33*a325d9c4SApple OSS Distributions T_DECL(operator_subscript, "bounded_array_ref.operator.subscript") {
34*a325d9c4SApple OSS Distributions 	tests<T>();
35*a325d9c4SApple OSS Distributions }
36