| // { dg-do run { target c++11 } } |
| |
| // Copyright (C) 2015-2023 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/>. |
| |
| // 22.3.3.2.3 Buffer conversions |
| |
| #include <locale> |
| #include <sstream> |
| #include <testsuite_hooks.h> |
| #include <testsuite_common_types.h> |
| |
| template<typename Elem> |
| struct cvt : std::codecvt<Elem, char, std::mbstate_t> { }; |
| |
| template<typename Elem> |
| using buf_conv = std::wbuffer_convert<cvt<Elem>, Elem>; |
| |
| using std::string; |
| using std::wstring; |
| |
| void test01() |
| { |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| buf_conv<wchar_t> buf; |
| std::stringbuf sbuf; |
| VERIFY( buf.rdbuf() == nullptr ); |
| VERIFY( buf.rdbuf(&sbuf) == nullptr ); |
| VERIFY( buf.rdbuf() == &sbuf ); |
| VERIFY( buf.rdbuf(nullptr) == &sbuf ); |
| |
| __gnu_test::implicitly_default_constructible test; |
| test.operator()<buf_conv<wchar_t>>(); // P0935R0 |
| #endif |
| } |
| |
| void test02() |
| { |
| std::stringbuf sbuf; |
| buf_conv<char> buf(&sbuf); // noconv |
| |
| std::stringstream ss; |
| ss.std::ios::rdbuf(&buf); |
| string input = "King for a day..."; |
| ss << input << std::flush; |
| string output = sbuf.str(); |
| VERIFY( input == output ); |
| } |
| |
| void test03() |
| { |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| std::stringbuf sbuf; |
| buf_conv<wchar_t> buf(&sbuf); |
| |
| std::wstringstream ss; |
| ss.std::wios::rdbuf(&buf); |
| wstring input = L"Fool for a lifetime"; |
| ss << input << std::flush; |
| string output = sbuf.str(); |
| VERIFY( output == "Fool for a lifetime" ); |
| #endif |
| } |
| |
| int main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| } |