xref: /xnu-8796.141.3/tests/bounded_array_ref_src/operator.subscript.cpp (revision 1b191cb58250d0705d8a51287127505aa4bc0789)
1*1b191cb5SApple OSS Distributions //
2*1b191cb5SApple OSS Distributions // Tests for
3*1b191cb5SApple OSS Distributions //  T& operator[](ptrdiff_t n) const;
4*1b191cb5SApple OSS Distributions //
5*1b191cb5SApple OSS Distributions 
6*1b191cb5SApple OSS Distributions #include <libkern/c++/bounded_array_ref.h>
7*1b191cb5SApple OSS Distributions #include "test_policy.h"
8*1b191cb5SApple OSS Distributions #include <darwintest.h>
9*1b191cb5SApple OSS Distributions #include <darwintest_utils.h>
10*1b191cb5SApple OSS Distributions 
11*1b191cb5SApple OSS Distributions struct T { int i; };
12*1b191cb5SApple OSS Distributions inline bool
operator ==(T const & a,T const & b)13*1b191cb5SApple OSS Distributions operator==(T const& a, T const& b)
14*1b191cb5SApple OSS Distributions {
15*1b191cb5SApple OSS Distributions 	return a.i == b.i;
16*1b191cb5SApple OSS Distributions };
17*1b191cb5SApple OSS Distributions 
18*1b191cb5SApple OSS Distributions template <typename T>
19*1b191cb5SApple OSS Distributions static void
tests()20*1b191cb5SApple OSS Distributions tests()
21*1b191cb5SApple OSS Distributions {
22*1b191cb5SApple OSS Distributions 	{
23*1b191cb5SApple OSS Distributions 		T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
24*1b191cb5SApple OSS Distributions 		test_bounded_array_ref<T> view(array);
25*1b191cb5SApple OSS Distributions 		CHECK(view[0] == T{0});
26*1b191cb5SApple OSS Distributions 		CHECK(view[1] == T{1});
27*1b191cb5SApple OSS Distributions 		CHECK(view[2] == T{2});
28*1b191cb5SApple OSS Distributions 		CHECK(view[3] == T{3});
29*1b191cb5SApple OSS Distributions 		CHECK(view[4] == T{4});
30*1b191cb5SApple OSS Distributions 	}
31*1b191cb5SApple OSS Distributions }
32*1b191cb5SApple OSS Distributions 
33*1b191cb5SApple OSS Distributions T_DECL(operator_subscript, "bounded_array_ref.operator.subscript") {
34*1b191cb5SApple OSS Distributions 	tests<T>();
35*1b191cb5SApple OSS Distributions }
36