| // 2004-02-14 Petur Runolfsson <peturr02@ru.is> |
| |
| // Copyright (C) 2004 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 2, 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 COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.8.1.4 Overridden virtual functions |
| |
| #include <fstream> |
| #include <locale> |
| |
| class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t> |
| { |
| protected: |
| virtual std::codecvt_base::result |
| do_out(std::mbstate_t&, const wchar_t* from, const wchar_t*, |
| const wchar_t*& from_next, char* to, char*, |
| char*& to_next) const |
| { |
| from_next = from; |
| to_next = to; |
| return std::codecvt_base::error; |
| } |
| |
| virtual bool |
| do_always_noconv() const throw() |
| { return false; } |
| }; |
| |
| // libstdc++/13858 |
| void test01() |
| { |
| using namespace std; |
| |
| wfilebuf fb; |
| fb.pubimbue(locale(locale::classic(), new Cvt)); |
| fb.open("tmp_13858_wchar_t", ios_base::out); |
| |
| try |
| { |
| fb.sputc(L'a'); |
| fb.sputc(L'b'); |
| fb.pubimbue(locale::classic()); |
| fb.sputc(L'c'); |
| fb.pubsync(); |
| fb.close(); |
| } |
| catch (std::exception&) |
| { |
| } |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |
