1// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> 2 3// Copyright (C) 2001, 2002, 2003 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 2, 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 COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// 27.8.1.4 Overridden virtual functions 22 23#include <fstream> 24#include <testsuite_hooks.h> 25#include <testsuite_io.h> 26 27// @require@ %-*.tst %-*.txt 28// @diff@ %-*.tst %*.txt 29 30const char name_01[] = "sgetc.txt"; // file with data in it 31const char name_03[] = "tmp_sgetc_1io.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, c3; 43 44 // int_type sgetc() 45 // if read_cur not avail, return uflow(), else return *read_cur 46 47 // in | out 1 48 { 49 constraint_filebuf fb_03; // in | out 50 fb_03.open(name_03, ios::out | ios::in | ios::trunc); 51 VERIFY( !fb_03.write_position() ); 52 VERIFY( !fb_03.read_position() ); 53 c1 = fb_03.sgetc(); 54 c2 = fb_03.sbumpc(); 55 VERIFY( c1 == traits_type::eof() ); 56 VERIFY( c1 == c2 ); 57 VERIFY( !fb_03.write_position() ); 58 VERIFY( !fb_03.read_position() ); 59 } 60 61 // in | out 2 62 { 63 constraint_filebuf fb_01; // in 64 fb_01.open(name_01, ios::in | ios::out); 65 VERIFY( !fb_01.write_position() ); 66 c1 = fb_01.sgetc(); 67 VERIFY( c1 == '/' ); 68 c2 = fb_01.sgetc(); 69 VERIFY( c1 == c2 ); 70 fb_01.sbumpc(); 71 c1 = fb_01.sbumpc(); 72 c2 = fb_01.sgetc(); 73 c3 = fb_01.sgetc(); 74 VERIFY( c1 == '/' ); 75 VERIFY( c2 == ' ' ); 76 VERIFY( c3 == ' ' ); 77 VERIFY( !fb_01.write_position() ); 78 VERIFY( fb_01.read_position() ); 79 } 80} 81 82int main() 83{ 84 test05(); 85 return 0; 86} 87