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83ffe9cd | 1 | // Copyright (C) 2020-2023 Free Software Foundation, Inc. |
a5f2fb1f JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-options "-std=gnu++2a" } | |
19 | // { dg-do compile { target c++2a } } | |
20 | ||
21 | #include <iterator> | |
22 | ||
23 | using std::projected; | |
24 | using std::identity; | |
25 | using std::indirect_unary_predicate; | |
26 | ||
27 | template<typename T, | |
28 | indirect_unary_predicate<projected<T*, identity>> Pred> | |
29 | constexpr void | |
30 | all_of(T*, Pred) | |
31 | { } | |
32 | ||
33 | void | |
34 | test01() | |
35 | { | |
36 | // PR libstdc++/92894 | |
37 | struct X { }; | |
38 | X x; | |
39 | all_of(&x, [](X&) { return false; }); | |
40 | } | |
41 | ||
42 | template<class R, class Proj = identity, | |
43 | indirect_unary_predicate<projected<R, Proj>> Pred> | |
44 | constexpr void | |
45 | find_if(R, Pred, Proj = {}) | |
46 | { } | |
47 | ||
48 | void | |
49 | test02() | |
50 | { | |
51 | // PR 94241 | |
52 | struct s { int m; }; | |
53 | s r[] = { s{0}, s{1}, s{2}, s{3} }; | |
54 | find_if(r, [](auto const) { return true; }); | |
55 | } |