1// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> 2 3// Copyright (C) 2001, 2002, 2003, 2009 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_01[] = "sgetc.txt"; // file with data in it 32const char name_03[] = "tmp_sgetc_2io.tst"; // empty file, need to create 33 34// Test overloaded virtual functions. 35void test05() 36{ 37 using namespace std; 38 using namespace __gnu_test; 39 typedef std::filebuf::int_type int_type; 40 typedef filebuf::traits_type traits_type; 41 42 bool test __attribute__((unused)) = true; 43 int_type c1, c2, c3; 44 45 // int_type sgetc() 46 // if read_cur not avail, return uflow(), else return *read_cur 47 48 // in | out 1 49 { 50 constraint_filebuf fb_03; // in | out 51 fb_03.pubsetbuf(0, 0); 52 fb_03.open(name_03, ios::out | ios::in | ios::trunc); 53 VERIFY( fb_03.unbuffered() ); 54 c1 = fb_03.sgetc(); 55 c2 = fb_03.sbumpc(); 56 VERIFY( c1 == traits_type::eof() ); 57 VERIFY( c1 == c2 ); 58 VERIFY( fb_03.unbuffered() ); 59 } 60 61 // in | out 2 62 { 63 constraint_filebuf fb_01; // in 64 fb_01.pubsetbuf(0, 0); 65 fb_01.open(name_01, ios::in | ios::out); 66 VERIFY( fb_01.unbuffered() ); 67 c1 = fb_01.sgetc(); 68 VERIFY( c1 == '/' ); 69 c2 = fb_01.sgetc(); 70 VERIFY( c1 == c2 ); 71 fb_01.sbumpc(); 72 c1 = fb_01.sbumpc(); 73 c2 = fb_01.sgetc(); 74 c3 = fb_01.sgetc(); 75 VERIFY( c1 == '/' ); 76 VERIFY( c2 == ' ' ); 77 VERIFY( c3 == ' ' ); 78 VERIFY( fb_01.unbuffered() ); 79 } 80} 81 82int main() 83{ 84 test05(); 85 return 0; 86} 87