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 26class testbuf : public std::filebuf 27{ 28public: 29 30 // Typedefs: 31 typedef std::filebuf base_type; 32 typedef base_type::traits_type traits_type; 33 typedef base_type::char_type char_type; 34 35 testbuf(): base_type() 36 { _M_mode = (std::ios_base::in | std::ios_base::out); } 37 38 bool 39 check_pointers() 40 { 41 bool test __attribute__((unused)) = true; 42 test = (this->pbase() == NULL); 43 test &= (this->pptr() == NULL); 44 return test; 45 } 46}; 47 48const char name_01[] = "filebuf_virtuals-1.txt"; 49 50// Test overloaded virtual functions. 51void test05() 52{ 53 using namespace std; 54 typedef std::filebuf::int_type int_type; 55 typedef std::filebuf::traits_type traits_type; 56 typedef std::filebuf::pos_type pos_type; 57 typedef std::filebuf::off_type off_type; 58 typedef size_t size_type; 59 60 bool test __attribute__((unused)) = true; 61 62 { 63 testbuf f_tmp; 64 65 // setbuf 66 // pubsetbuf(char_type* s, streamsize n) 67 f_tmp.pubsetbuf(0,0); 68 VERIFY( f_tmp.check_pointers() ); 69 } 70 71 { 72 testbuf f_tmp; 73 74 f_tmp.open(name_01, ios_base::out | ios_base::in); 75 f_tmp.sbumpc(); 76 77 // setbuf 78 // pubsetbuf(char_type* s, streamsize n) 79 f_tmp.pubsetbuf(0, 0); 80 VERIFY( f_tmp.check_pointers() ); 81 } 82} 83 84int main() 85{ 86 test05(); 87 return 0; 88} 89