1// Copyright (C) 2007, 2009 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// 27.8.1.4 Overridden virtual functions 19 20// { dg-require-fileio "" } 21 22#include <fstream> 23#include <cctype> 24#include <locale> 25#include <testsuite_hooks.h> 26 27class Mycvtcc 28: public std::codecvt<char, char, std::mbstate_t> 29{ 30protected: 31 virtual result 32 do_in(state_type&, 33 const extern_type* from, const extern_type* from_end, 34 const extern_type*& from_next, 35 intern_type* to, intern_type* to_limit, 36 intern_type*& to_next) const 37 { 38 from_next = from, to_next = to; 39 40 if (from_next == from_end || to_next == to_limit) 41 return partial; 42 43 if (std::islower(*from_next)) 44 *to_next = std::toupper(*from_next); 45 else 46 *to_next = *from_next; 47 ++from_next, ++to_next; 48 return ok; 49 } 50 51 virtual bool 52 do_always_noconv() const throw() 53 { return false; } 54}; 55 56// See Novell Bug 255122 57void test01() 58{ 59 bool test __attribute__((unused)) = true; 60 using namespace std; 61 62 const char* name = "tmp_underflow_3.tst"; 63 filebuf fbuf, fbufx; 64 65 fbuf.open(name, ios_base::out | ios_base::trunc); 66 VERIFY( fbuf.sputc('a') == 'a' ); 67 VERIFY( fbuf.sputc('b') == 'b' ); 68 VERIFY( fbuf.sputc('\n') == '\n' ); 69 fbuf.close(); 70 71 fbufx.pubimbue(locale(locale::classic(), new Mycvtcc)); 72 fbufx.open(name, ios_base::in); 73 VERIFY( fbufx.sbumpc() == 'A' ); 74 VERIFY( fbufx.sbumpc() == 'B' ); 75 VERIFY( fbufx.sbumpc() == '\n' ); 76 VERIFY( fbufx.sbumpc() == filebuf::traits_type::eof() ); 77 fbufx.close(); 78} 79 80int main() 81{ 82 test01(); 83 return 0; 84} 85