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
11 // <functional>
12
13 // Test that std::compare_three_way is defined in <functional>,
14 // not only in <compare>.
15
16 #include <functional>
17 #include <cassert>
18
main(int,char **)19 int main(int, char**)
20 {
21 assert(std::compare_three_way()(1, 2) < 0);
22 assert(std::compare_three_way()(1, 1) == 0);
23 assert(std::compare_three_way()(2, 1) > 0);
24
25 return 0;
26 }
27