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#include <testsuite_io.h> 27 28// @require@ %-*.tst %-*.txt 29// @diff@ %-*.tst %*.txt 30 31const char name_02[] = "tmp_sgetc_1out.tst"; // empty file, need to create 32 33// Test overloaded virtual functions. 34void test05() 35{ 36 using namespace std; 37 using namespace __gnu_test; 38 typedef std::filebuf::int_type int_type; 39 typedef filebuf::traits_type traits_type; 40 41 bool test __attribute__((unused)) = true; 42 int_type c1, c2; 43 44 // int_type sgetc() 45 // if read_cur not avail, return uflow(), else return *read_cur 46 47 // out 48 { 49 constraint_filebuf fb_02; // out 50 fb_02.open(name_02, ios::out | ios::trunc); 51 VERIFY( !fb_02.write_position() ); 52 VERIFY( !fb_02.read_position() ); 53 c1 = fb_02.sgetc(); 54 VERIFY( c1 == traits_type::eof() ); 55 c2 = fb_02.sgetc(); 56 VERIFY( c2 == traits_type::eof() ); 57 fb_02.sbumpc(); 58 c1 = fb_02.sbumpc(); 59 c2 = fb_02.sgetc(); 60 VERIFY( c1 == c2 ); 61 VERIFY( !fb_02.write_position() ); 62 VERIFY( !fb_02.read_position() ); 63 } 64} 65 66int main() 67{ 68 test05(); 69 return 0; 70} 71