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 // <algorithm>
13 
14 // template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
15 //          indirect_unary_predicate<projected<I, Proj>> Pred>
16 //   constexpr I partition_point(I first, S last, Pred pred, Proj proj = {});                       // Since C++20
17 //
18 // template<forward_range R, class Proj = identity,
19 //          indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
20 //   constexpr borrowed_iterator_t<R>
21 //     partition_point(R&& r, Pred pred, Proj proj = {});                                           // Since C++20
22 
23 #include <algorithm>
24 #include <array>
25 #include <concepts>
26 #include <functional>
27 #include <ranges>
28 
29 #include "almost_satisfies_types.h"
30 #include "test_iterators.h"
31 
32 // TODO: SFINAE tests.
33 
34 constexpr bool test() {
35   // TODO: main tests.
36   // TODO: A custom comparator works.
37   // TODO: A custom projection works.
38 
39   return true;
40 }
41 
42 int main(int, char**) {
43   test();
44   static_assert(test());
45 
46   return 0;
47 }
48