xref: /xnu-8020.121.3/tests/bounded_array_ref_src/operator.subscript.cpp (revision fdd8201d7b966f0c3ea610489d29bd841d358941)
1*fdd8201dSApple OSS Distributions //
2*fdd8201dSApple OSS Distributions // Tests for
3*fdd8201dSApple OSS Distributions //  T& operator[](ptrdiff_t n) const;
4*fdd8201dSApple OSS Distributions //
5*fdd8201dSApple OSS Distributions 
6*fdd8201dSApple OSS Distributions #include <libkern/c++/bounded_array_ref.h>
7*fdd8201dSApple OSS Distributions #include "test_policy.h"
8*fdd8201dSApple OSS Distributions #include <darwintest.h>
9*fdd8201dSApple OSS Distributions #include <darwintest_utils.h>
10*fdd8201dSApple OSS Distributions 
11*fdd8201dSApple OSS Distributions struct T { int i; };
12*fdd8201dSApple OSS Distributions inline bool
operator ==(T const & a,T const & b)13*fdd8201dSApple OSS Distributions operator==(T const& a, T const& b)
14*fdd8201dSApple OSS Distributions {
15*fdd8201dSApple OSS Distributions 	return a.i == b.i;
16*fdd8201dSApple OSS Distributions };
17*fdd8201dSApple OSS Distributions 
18*fdd8201dSApple OSS Distributions template <typename T>
19*fdd8201dSApple OSS Distributions static void
tests()20*fdd8201dSApple OSS Distributions tests()
21*fdd8201dSApple OSS Distributions {
22*fdd8201dSApple OSS Distributions 	{
23*fdd8201dSApple OSS Distributions 		T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
24*fdd8201dSApple OSS Distributions 		test_bounded_array_ref<T> view(array);
25*fdd8201dSApple OSS Distributions 		CHECK(view[0] == T{0});
26*fdd8201dSApple OSS Distributions 		CHECK(view[1] == T{1});
27*fdd8201dSApple OSS Distributions 		CHECK(view[2] == T{2});
28*fdd8201dSApple OSS Distributions 		CHECK(view[3] == T{3});
29*fdd8201dSApple OSS Distributions 		CHECK(view[4] == T{4});
30*fdd8201dSApple OSS Distributions 	}
31*fdd8201dSApple OSS Distributions }
32*fdd8201dSApple OSS Distributions 
33*fdd8201dSApple OSS Distributions T_DECL(operator_subscript, "bounded_array_ref.operator.subscript") {
34*fdd8201dSApple OSS Distributions 	tests<T>();
35*fdd8201dSApple OSS Distributions }
36