1// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> 2 3// Copyright (C) 2001-2015 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// { dg-require-fileio "" } 23 24#include <fstream> 25#include <testsuite_hooks.h> 26 27const char name_06[] = "filebuf_virtuals-6.txt"; // empty file, need to create 28 29// libstdc++/9825 30// filebuf::sputbackc breaks sbumpc 31void test12() 32{ 33 using namespace std; 34 bool test __attribute__((unused)) = true; 35 36 filebuf fbuf; 37 38 fbuf.open(name_06, ios_base::in|ios_base::out|ios_base::trunc); 39 fbuf.sputn("crazy bees!", 11); 40 fbuf.pubseekoff(0, ios_base::beg); 41 fbuf.sbumpc(); 42 fbuf.sputbackc('x'); 43 filebuf::int_type c = fbuf.sbumpc(); 44 VERIFY( c == 'x' ); 45 c = fbuf.sbumpc(); 46 VERIFY( c == 'r' ); 47 c = fbuf.sbumpc(); 48 VERIFY( c == 'a' ); 49 fbuf.close(); 50} 51 52int main() 53{ 54 test12(); 55 return 0; 56} 57