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99dee823 | 1 | // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
b1850c61 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-do compile { target c++11 } } | |
19 | ||
20 | #include <chrono> | |
21 | ||
22 | void | |
23 | test01() | |
24 | { | |
25 | using namespace std::chrono; | |
26 | using std::exa; | |
27 | ||
28 | // LWG 2094 | |
29 | // duration conversion overflow shouldn't participate in overload resolution | |
30 | bool f(milliseconds); | |
31 | void f(seconds); | |
32 | duration<int,exa> r(1); | |
33 | f(r); | |
34 | } | |
35 | ||
36 | void | |
37 | test02() | |
38 | { | |
39 | struct Number | |
40 | { | |
41 | explicit | |
42 | Number(int t = 0) : i(t) | |
43 | { } | |
44 | ||
45 | int i = 0; | |
46 | ||
47 | Number& operator+=(Number n) { i += n.i; return *this; } | |
48 | Number& operator-=(Number n) { i -= n.i; return *this; } | |
49 | Number& operator*=(Number n) { i *= n.i; return *this; } | |
50 | Number& operator/=(Number n) { i /= n.i; return *this; } | |
51 | Number& operator%=(Number n) { i %= n.i; return *this; } | |
52 | ||
53 | Number operator+(Number n) { return Number{ i + n.i }; } | |
54 | Number operator-(Number n) { return Number{ i - n.i }; } | |
55 | Number operator*(Number n) { return Number{ i * n.i }; } | |
56 | Number operator/(Number n) { return Number{ i / n.i }; } | |
57 | Number operator%(Number n) { return Number{ i % n.i }; } | |
58 | }; | |
59 | ||
60 | using std::chrono::duration; | |
61 | ||
62 | static_assert( ! std::is_constructible<duration<int>, duration<Number>>(), | |
63 | "duration(const duration<R2, P2>&) constrained on R2 -> R conversion" ); | |
64 | } |