1// 2004-10-01 Paolo Carlini <pcarlini@suse.de> 2 3// Copyright (C) 2004 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 2, 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 COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// 27.7.1.3 Overridden virtual functions [lib.stringbuf.virtuals] 22 23#include <sstream> 24#include <testsuite_hooks.h> 25 26class my_stringbuf : public std::stringbuf 27{ 28public: 29 my_stringbuf(const std::string& str, std::ios_base::openmode mode) 30 : std::stringbuf(str, mode) { } 31 32 int_type 33 pub_pbackfail(int_type __c) 34 { return this->pbackfail(__c); } 35}; 36 37// We weren't enforcing 27.7.1.3/2, bullet 2: "... and if 38// mode & ios_base::out is nonzero, ..." 39void test01() 40{ 41 bool test __attribute__((unused)) = true; 42 using namespace std; 43 44 typedef my_stringbuf::int_type int_type; 45 typedef my_stringbuf::traits_type traits_type; 46 47 my_stringbuf sbuf("any", ios_base::in); 48 49 int_type c = sbuf.sbumpc(); 50 VERIFY( c == 'a' ); 51 52 c = sbuf.pub_pbackfail('x'); 53 VERIFY( c == traits_type::eof() ); 54 VERIFY( sbuf.str() == "any" ); 55 c = sbuf.sgetc(); 56 VERIFY( c == 'n' ); 57} 58 59 60int main() 61{ 62 test01(); 63 return 0; 64} 65