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41cd9d4d | 1 | // { dg-do compile { target c++20 } } |
7b743c67 | 2 | |
a945c346 | 3 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
7b743c67 PP |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // Class template year_month_weekday [time.cal.year_month_weekday] | |
21 | ||
22 | #include <chrono> | |
23 | ||
24 | constexpr void | |
25 | constexpr_year_month_weekday_op_overload_disambiguation() | |
26 | { | |
27 | using namespace std::chrono; | |
28 | using decades = duration<long long, std::ratio<31556952 * 10>>; | |
29 | static_assert(std::convertible_to<decades, months> | |
30 | && std::convertible_to<decades, years>); | |
31 | using ymwd = year_month_weekday; | |
32 | ||
33 | constexpr ymwd ymwd1 = 2015y/June/Monday[3]; | |
34 | static_assert(ymwd1 + decades{1} == 2025y/June/Monday[3]); | |
35 | static_assert(ymwd1 - decades{1} == 2005y/June/Monday[3]); | |
36 | static_assert(decades{1} + ymwd1 == 2025y/June/Monday[3]); | |
37 | static_assert((ymwd{ymwd1} += decades{1}) == 2025y/June/Monday[3]); | |
38 | static_assert((ymwd{ymwd1} -= decades{1}) == 2005y/June/Monday[3]); | |
39 | } |