xref: /xnu-11417.121.6/tests/bounded_array_ref_src/operator.subscript.cpp (revision a1e26a70f38d1d7daa7b49b258e2f8538ad81650)
1*a1e26a70SApple OSS Distributions //
2*a1e26a70SApple OSS Distributions // Tests for
3*a1e26a70SApple OSS Distributions //  T& operator[](ptrdiff_t n) const;
4*a1e26a70SApple OSS Distributions //
5*a1e26a70SApple OSS Distributions 
6*a1e26a70SApple OSS Distributions #include <libkern/c++/bounded_array_ref.h>
7*a1e26a70SApple OSS Distributions #include "test_policy.h"
8*a1e26a70SApple OSS Distributions #include <darwintest.h>
9*a1e26a70SApple OSS Distributions #include <darwintest_utils.h>
10*a1e26a70SApple OSS Distributions 
11*a1e26a70SApple OSS Distributions struct T { int i; };
12*a1e26a70SApple OSS Distributions inline bool
operator ==(T const & a,T const & b)13*a1e26a70SApple OSS Distributions operator==(T const& a, T const& b)
14*a1e26a70SApple OSS Distributions {
15*a1e26a70SApple OSS Distributions 	return a.i == b.i;
16*a1e26a70SApple OSS Distributions };
17*a1e26a70SApple OSS Distributions 
18*a1e26a70SApple OSS Distributions template <typename T>
19*a1e26a70SApple OSS Distributions static void
tests()20*a1e26a70SApple OSS Distributions tests()
21*a1e26a70SApple OSS Distributions {
22*a1e26a70SApple OSS Distributions 	{
23*a1e26a70SApple OSS Distributions 		T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
24*a1e26a70SApple OSS Distributions 		test_bounded_array_ref<T> view(array);
25*a1e26a70SApple OSS Distributions 		CHECK(view[0] == T{0});
26*a1e26a70SApple OSS Distributions 		CHECK(view[1] == T{1});
27*a1e26a70SApple OSS Distributions 		CHECK(view[2] == T{2});
28*a1e26a70SApple OSS Distributions 		CHECK(view[3] == T{3});
29*a1e26a70SApple OSS Distributions 		CHECK(view[4] == T{4});
30*a1e26a70SApple OSS Distributions 	}
31*a1e26a70SApple OSS Distributions }
32*a1e26a70SApple OSS Distributions 
33*a1e26a70SApple OSS Distributions T_DECL(operator_subscript, "bounded_array_ref.operator.subscript", T_META_TAG_VM_PREFERRED) {
34*a1e26a70SApple OSS Distributions 	tests<T>();
35*a1e26a70SApple OSS Distributions }
36