| // { dg-do run { target c++17 } } |
| |
| // Copyright (C) 2016-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // [string.modifiers] |
| |
| #include <string> |
| #include <testsuite_hooks.h> |
| |
| void |
| test03() |
| { |
| std::wstring_view str1(L"foo"); |
| std::wstring str2; |
| str2.assign(str1); |
| VERIFY (str2 == str1); |
| std::wstring str4; |
| str4.assign(str1, 1, 2); |
| VERIFY (str4 == L"oo"); |
| } |
| |
| // PR libstdc++/77264 |
| void |
| test04() |
| { |
| std::wstring str(L"a"); |
| |
| wchar_t c = L'b'; |
| str.assign(&c, 1); |
| VERIFY (str[0] == c); |
| |
| wchar_t arr[] = L"c"; |
| str.assign(arr, 1); |
| VERIFY (str[0] == arr[0]); |
| |
| const wchar_t carr[] = L"d"; |
| str.assign(carr, 1); |
| VERIFY (str[0] == carr[0]); |
| |
| struct S { |
| operator wchar_t*() { return &c; } |
| operator std::wstring_view() { return L"!"; } |
| wchar_t c = L'e'; |
| }; |
| |
| str.assign(S{}, 1); |
| VERIFY (str[0] == S{}.c); |
| } |
| |
| int main() |
| { |
| test03(); |
| test04(); |
| return 0; |
| } |