1// 2004-02-14 Petur Runolfsson <peturr02@ru.is> 2 3// Copyright (C) 2004, 2009 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 3, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING3. If not see 18// <http://www.gnu.org/licenses/>. 19 20// 27.8.1.4 Overridden virtual functions 21 22#include <fstream> 23#include <locale> 24 25class Cvt : public std::codecvt<char, char, std::mbstate_t> 26{ 27protected: 28 virtual std::codecvt_base::result 29 do_out(std::mbstate_t&, const char* from, const char*, 30 const char*& from_next, char* to, char*, char*& to_next) const 31 { 32 from_next = from; 33 to_next = to; 34 return std::codecvt_base::error; 35 } 36 37 virtual bool 38 do_always_noconv() const throw() 39 { return false; } 40}; 41 42// libstdc++/13858 43void test01() 44{ 45 using namespace std; 46 47 filebuf fb; 48 fb.pubimbue(locale(locale::classic(), new Cvt)); 49 fb.open("tmp_13858_char", ios_base::out); 50 51 try 52 { 53 fb.sputc('a'); 54 fb.sputc('b'); 55 fb.pubimbue(locale::classic()); 56 fb.sputc('c'); 57 fb.pubsync(); 58 fb.close(); 59 } 60 catch (std::exception&) 61 { 62 } 63} 64 65int main() 66{ 67 test01(); 68 return 0; 69} 70