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1 | // { dg-options "-std=gnu++2a" } |
2 | // { dg-do compile { target c++2a } } | |
3 | ||
99dee823 | 4 | // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
03d5044b PP |
5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | // Class template year_month [time.cal.year_month] | |
22 | ||
23 | #include <chrono> | |
24 | ||
25 | constexpr void | |
26 | constexpr_year_month() | |
27 | { | |
28 | using namespace std::chrono; | |
29 | using ym = year_month; | |
30 | ||
31 | ym ym0 = 2015y/April; | |
32 | ym0 += years{100}; | |
33 | ym0 -= years{100}; | |
34 | ym0 += months{50}; | |
35 | ym0 -= months{50}; | |
36 | ||
37 | constexpr ym ym1 = {2015y, June}; | |
38 | static_assert(ym1.year() == year{2015}); | |
39 | static_assert(ym1.month() == June); | |
40 | static_assert(ym1.ok()); | |
41 | ||
42 | constexpr ym ym2 = {2016y, May}; | |
43 | static_assert(ym2.year() == year{2016}); | |
44 | static_assert(ym2.month() == May); | |
45 | static_assert(ym2.ok()); | |
46 | ||
47 | static_assert(ym1 == ym1); | |
48 | static_assert(ym1 != ym2); | |
49 | static_assert(ym1 < ym2); | |
50 | static_assert(ym1 <= ym2); | |
51 | static_assert(ym2 > ym1); | |
52 | static_assert(ym2 >= ym2); | |
53 | ||
54 | static_assert(ym1 <=> ym1 == std::strong_ordering::equal); | |
55 | static_assert(ym1 <=> ym2 == std::strong_ordering::less); | |
56 | static_assert(ym2 <=> ym1 == std::strong_ordering::greater); | |
57 | ||
58 | static_assert(2015y/August == ym{year{2015}, August}); | |
59 | static_assert(2015y/8 == ym{year{2015}, August}); | |
60 | ||
61 | static_assert(ym1 + months{6} == 2015y/December); | |
62 | static_assert(ym1 + months{7} == 2016y/January); | |
63 | static_assert(months{24} + ym1 == 2017y/June); | |
64 | static_assert(months{25} + ym1 == 2017y/July); | |
65 | ||
66 | static_assert(ym1 + months{-5} == 2015y/January); | |
67 | static_assert(ym1 + months{-6} == 2014y/December); | |
68 | static_assert(ym1 + months{-24} == 2013y/June); | |
69 | static_assert(ym1 + months{-25} == 2013y/May); | |
70 | ||
71 | static_assert(ym1 - months{5} == 2015y/January); | |
72 | static_assert(ym1 - months{6} == 2014y/December); | |
73 | static_assert(ym1 - months{24} == 2013y/June); | |
74 | static_assert(ym1 - months{25} == 2013y/May); | |
75 | ||
76 | static_assert(ym2 - ym1 == months{11}); | |
77 | static_assert(ym1 - ym2 == -months{11}); | |
78 | ||
79 | static_assert(ym2 + years{1} == 2017y/May); | |
80 | static_assert(ym2 + years{-1} == 2015y/May); | |
81 | static_assert(ym2 - years{1} == 2015y/May); | |
82 | ||
83 | static_assert(2017y/33 + months{0} == 2019y/9); | |
84 | ||
85 | static_assert(2010y/January + months{-12} == 2009y/January); | |
71e97161 PP |
86 | |
87 | static_assert(2010y/month{0} + months{-1} == 2009y/November); | |
88 | static_assert(2010y/month{0} + months{0} == 2009y/December); | |
89 | static_assert(2010y/month{0} + months{1} == 2010y/January); | |
90 | static_assert(2010y/month{0} + months{2} == 2010y/February); | |
91 | static_assert(2010y/month{0} + months{11} == 2010y/November); | |
92 | static_assert(2010y/month{0} + months{12} == 2010y/December); | |
93 | static_assert(2010y/month{0} + months{13} == 2011y/January); | |
94 | ||
95 | static_assert(months{-1} + 2010y/month{37} == 2012y/December); | |
96 | static_assert(months{0} + 2010y/month{37} == 2013y/January); | |
97 | static_assert(months{1} + 2010y/month{37} == 2013y/February); | |
03d5044b | 98 | } |