152
|
1 // Copyright (C) 2020 Free Software Foundation, Inc.
|
|
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 <string_view>
|
|
22
|
|
23 constexpr bool
|
|
24 test01()
|
|
25 {
|
|
26 std::wstring_view s = L"Everything changes and nothing stands still.";
|
|
27 wchar_t buf[7]{};
|
|
28 auto n = s.copy(buf, 7, 11);
|
|
29 return std::wstring_view(buf, n) == L"changes";
|
|
30 }
|
|
31
|
|
32 static_assert( test01() );
|