xref: /xnu-12377.81.4/tests/bounded_array_ref_src/operator.subscript.cpp (revision 043036a2b3718f7f0be807e2870f8f47d3fa0796)
1*043036a2SApple OSS Distributions //
2*043036a2SApple OSS Distributions // Tests for
3*043036a2SApple OSS Distributions //  T& operator[](ptrdiff_t n) const;
4*043036a2SApple OSS Distributions //
5*043036a2SApple OSS Distributions 
6*043036a2SApple OSS Distributions #include <libkern/c++/bounded_array_ref.h>
7*043036a2SApple OSS Distributions #include "test_policy.h"
8*043036a2SApple OSS Distributions #include <darwintest.h>
9*043036a2SApple OSS Distributions #include <darwintest_utils.h>
10*043036a2SApple OSS Distributions 
11*043036a2SApple OSS Distributions struct T { int i; };
12*043036a2SApple OSS Distributions inline bool
operator ==(T const & a,T const & b)13*043036a2SApple OSS Distributions operator==(T const& a, T const& b)
14*043036a2SApple OSS Distributions {
15*043036a2SApple OSS Distributions 	return a.i == b.i;
16*043036a2SApple OSS Distributions };
17*043036a2SApple OSS Distributions 
18*043036a2SApple OSS Distributions template <typename T>
19*043036a2SApple OSS Distributions static void
tests()20*043036a2SApple OSS Distributions tests()
21*043036a2SApple OSS Distributions {
22*043036a2SApple OSS Distributions 	{
23*043036a2SApple OSS Distributions 		T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
24*043036a2SApple OSS Distributions 		test_bounded_array_ref<T> view(array);
25*043036a2SApple OSS Distributions 		CHECK(view[0] == T{0});
26*043036a2SApple OSS Distributions 		CHECK(view[1] == T{1});
27*043036a2SApple OSS Distributions 		CHECK(view[2] == T{2});
28*043036a2SApple OSS Distributions 		CHECK(view[3] == T{3});
29*043036a2SApple OSS Distributions 		CHECK(view[4] == T{4});
30*043036a2SApple OSS Distributions 	}
31*043036a2SApple OSS Distributions }
32*043036a2SApple OSS Distributions 
33*043036a2SApple OSS Distributions T_DECL(operator_subscript, "bounded_array_ref.operator.subscript", T_META_TAG_VM_PREFERRED) {
34*043036a2SApple OSS Distributions 	tests<T>();
35*043036a2SApple OSS Distributions }
36