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99dee823 | 1 | // Copyright (C) 2018-2021 Free Software Foundation, Inc. |
d86b600d 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++17" } | |
19 | // { dg-do run { target c++17 } } | |
20 | ||
21 | #include <string_view> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | using char_type = wchar_t; | |
25 | ||
26 | // PR libstdc++/88084 | |
27 | // LWG 2777. basic_string_view::copy should use char_traits::copy | |
28 | ||
29 | struct traits : std::char_traits<char_type> | |
30 | { | |
31 | static char_type* | |
32 | copy(char_type* s, const char_type* p, std::size_t n) | |
33 | { | |
34 | while (n--) | |
35 | *s++ = 'X'; | |
36 | return s; | |
37 | } | |
38 | }; | |
39 | ||
40 | void | |
41 | test01() | |
42 | { | |
43 | std::basic_string_view<char_type, traits> s = L"abc"; | |
44 | char_type buf[3] = { L'1', L'2', L'3' }; | |
45 | auto len = s.copy(buf, 3, 1); | |
46 | VERIFY( len == 2 ); | |
47 | VERIFY( buf[0] == L'X' ); | |
48 | VERIFY( buf[1] == L'X' ); | |
49 | VERIFY( buf[2] == L'3' ); | |
50 | } | |
51 | ||
52 | int | |
53 | main() | |
54 | { | |
55 | test01(); | |
56 | } |