1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 // UNSUPPORTED: libcpp-has-no-incomplete-ranges
11 
12 // clang-cl and cl currently don't support [[no_unique_address]]
13 // XFAIL: msvc
14 
15 // [algorithms.results]/1
16 //   Each of the class templates specified in this subclause has the template parameters,
17 //   data members, and special members specified below, and has no base classes or members
18 //   other than those specified.
19 
20 #include <algorithm>
21 
22 struct Empty {};
23 struct Empty2 {};
24 
25 static_assert(sizeof(std::ranges::in_in_result<Empty, int>) == sizeof(int));
26 static_assert(sizeof(std::ranges::in_in_result<int, Empty>) == sizeof(int));
27 static_assert(sizeof(std::ranges::in_in_result<Empty, Empty>) == 2);
28 
29 static_assert(sizeof(std::ranges::in_in_out_result<Empty, int, int>) == 2 * sizeof(int));
30 static_assert(sizeof(std::ranges::in_in_out_result<int, Empty, int>) == 2 * sizeof(int));
31 static_assert(sizeof(std::ranges::in_in_out_result<int, int, Empty>) == 2 * sizeof(int));
32 static_assert(sizeof(std::ranges::in_in_out_result<char, Empty, Empty>) == 2);
33 static_assert(sizeof(std::ranges::in_in_out_result<Empty, char, Empty>) == 2);
34 static_assert(sizeof(std::ranges::in_in_out_result<Empty, Empty, char>) == 2);
35 static_assert(sizeof(std::ranges::in_in_out_result<int, Empty, Empty2>) == sizeof(int));
36 static_assert(sizeof(std::ranges::in_in_out_result<Empty, Empty, Empty>) == 3);
37 
38 static_assert(sizeof(std::ranges::in_out_out_result<Empty, int, int>) == 2 * sizeof(int));
39 static_assert(sizeof(std::ranges::in_out_out_result<int, Empty, int>) == 2 * sizeof(int));
40 static_assert(sizeof(std::ranges::in_out_out_result<int, int, Empty>) == 2 * sizeof(int));
41 static_assert(sizeof(std::ranges::in_out_out_result<char, Empty, Empty>) == 2);
42 static_assert(sizeof(std::ranges::in_out_out_result<Empty, char, Empty>) == 2);
43 static_assert(sizeof(std::ranges::in_out_out_result<Empty, Empty, char>) == 2);
44 static_assert(sizeof(std::ranges::in_out_out_result<int, Empty, Empty2>) == sizeof(int));
45 static_assert(sizeof(std::ranges::in_out_out_result<Empty, Empty, Empty>) == 3);
46 
47 static_assert(sizeof(std::ranges::in_fun_result<Empty, int>) == sizeof(int));
48 static_assert(sizeof(std::ranges::in_fun_result<int, Empty>) == sizeof(int));
49 static_assert(sizeof(std::ranges::in_fun_result<Empty, Empty>) == 2);
50