1 // Copyright (C) 2010-2014 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 // { dg-require-fileio "" } 19 20 #include <fstream> 21 #include <testsuite_hooks.h> 22 test01()23void test01() 24 { 25 bool test __attribute__((unused)) = true; 26 using namespace std; 27 28 wfilebuf fb_in_out; 29 30 fb_in_out.open("tmp_underflow.tst", ios::in | ios::out | ios::trunc); 31 32 VERIFY( fb_in_out.sputc(L'x') == L'x' ); 33 VERIFY( fb_in_out.sgetc() == wfilebuf::traits_type::eof() ); 34 fb_in_out.close(); 35 } 36 main()37int main() 38 { 39 test01(); 40 return 0; 41 } 42