xref: /xnu-11215.61.5/tests/bounded_array_ref_src/operator.subscript.cpp (revision 4f1223e81cd707a65cc109d0b8ad6653699da3c4)
1*4f1223e8SApple OSS Distributions //
2*4f1223e8SApple OSS Distributions // Tests for
3*4f1223e8SApple OSS Distributions //  T& operator[](ptrdiff_t n) const;
4*4f1223e8SApple OSS Distributions //
5*4f1223e8SApple OSS Distributions 
6*4f1223e8SApple OSS Distributions #include <libkern/c++/bounded_array_ref.h>
7*4f1223e8SApple OSS Distributions #include "test_policy.h"
8*4f1223e8SApple OSS Distributions #include <darwintest.h>
9*4f1223e8SApple OSS Distributions #include <darwintest_utils.h>
10*4f1223e8SApple OSS Distributions 
11*4f1223e8SApple OSS Distributions struct T { int i; };
12*4f1223e8SApple OSS Distributions inline bool
operator ==(T const & a,T const & b)13*4f1223e8SApple OSS Distributions operator==(T const& a, T const& b)
14*4f1223e8SApple OSS Distributions {
15*4f1223e8SApple OSS Distributions 	return a.i == b.i;
16*4f1223e8SApple OSS Distributions };
17*4f1223e8SApple OSS Distributions 
18*4f1223e8SApple OSS Distributions template <typename T>
19*4f1223e8SApple OSS Distributions static void
tests()20*4f1223e8SApple OSS Distributions tests()
21*4f1223e8SApple OSS Distributions {
22*4f1223e8SApple OSS Distributions 	{
23*4f1223e8SApple OSS Distributions 		T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
24*4f1223e8SApple OSS Distributions 		test_bounded_array_ref<T> view(array);
25*4f1223e8SApple OSS Distributions 		CHECK(view[0] == T{0});
26*4f1223e8SApple OSS Distributions 		CHECK(view[1] == T{1});
27*4f1223e8SApple OSS Distributions 		CHECK(view[2] == T{2});
28*4f1223e8SApple OSS Distributions 		CHECK(view[3] == T{3});
29*4f1223e8SApple OSS Distributions 		CHECK(view[4] == T{4});
30*4f1223e8SApple OSS Distributions 	}
31*4f1223e8SApple OSS Distributions }
32*4f1223e8SApple OSS Distributions 
33*4f1223e8SApple OSS Distributions T_DECL(operator_subscript, "bounded_array_ref.operator.subscript", T_META_TAG_VM_PREFERRED) {
34*4f1223e8SApple OSS Distributions 	tests<T>();
35*4f1223e8SApple OSS Distributions }
36