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_01[] = "sgetc.txt"; // file with data in it 32const char name_03[] = "tmp_sbumpc_2io.tst"; // empty file, need to create 33 34void test05() 35{ 36 using namespace std; 37 using namespace __gnu_test; 38 typedef filebuf::int_type int_type; 39 typedef filebuf::traits_type traits_type; 40 41 bool test __attribute__((unused)) = true; 42 43 // int_type sbumpc() 44 // if read_cur not avail returns uflow(), else return *read_cur & increment 45 46 // in | out 1 47 { 48 constraint_filebuf fb_03; 49 fb_03.pubsetbuf(0, 0); 50 fb_03.open(name_03, ios_base::out | ios_base::in | ios_base::trunc); 51 VERIFY( fb_03.unbuffered() ); 52 int_type c5 = fb_03.sbumpc(); 53 VERIFY( c5 == traits_type::eof() ); 54 VERIFY( fb_03.unbuffered() ); 55 } 56 57 // in | out 2 58 { 59 constraint_filebuf fb_01; 60 fb_01.pubsetbuf(0, 0); 61 fb_01.open(name_01, ios_base::in | ios_base::out); 62 VERIFY( fb_01.unbuffered() ); 63 64 int_type c1 = fb_01.sbumpc(); 65 VERIFY( c1 == '/' ); 66 int_type c3 = fb_01.sbumpc(); 67 VERIFY( c3 == '/' ); 68 69 c1 = fb_01.sgetc(); 70 int_type c2 = fb_01.sbumpc(); 71 c3 = fb_01.sgetc(); 72 VERIFY( c1 == ' ' ); 73 VERIFY( c3 == '9' ); 74 VERIFY( c1 == c2 ); 75 VERIFY( c2 != c3 ); 76 77 c1 = fb_01.sbumpc(); 78 c2 = fb_01.sbumpc(); 79 c3 = fb_01.sgetc(); 80 VERIFY( c1 == '9' ); 81 VERIFY( c2 == '9' ); 82 VERIFY( c3 == '0' ); 83 84 VERIFY( fb_01.unbuffered() ); 85 } 86} 87 88int main() 89{ 90 test05(); 91 return 0; 92} 93