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 27class testbuf : public std::filebuf 28{ 29public: 30 31 // Typedefs: 32 typedef std::filebuf base_type; 33 typedef base_type::traits_type traits_type; 34 typedef base_type::char_type char_type; 35 36 testbuf(): base_type() 37 { _M_mode = (std::ios_base::in | std::ios_base::out); } 38 39 bool 40 check_pointers() 41 { 42 bool test __attribute__((unused)) = true; 43 test = (this->pbase() == NULL); 44 test &= (this->pptr() == NULL); 45 return test; 46 } 47}; 48 49const char name_01[] = "filebuf_virtuals-1.txt"; 50 51// Test overloaded virtual functions. 52void test05() 53{ 54 using namespace std; 55 typedef std::filebuf::int_type int_type; 56 typedef std::filebuf::traits_type traits_type; 57 typedef std::filebuf::pos_type pos_type; 58 typedef std::filebuf::off_type off_type; 59 typedef size_t size_type; 60 61 bool test __attribute__((unused)) = true; 62 63 { 64 testbuf f_tmp; 65 66 // setbuf 67 // pubsetbuf(char_type* s, streamsize n) 68 f_tmp.pubsetbuf(0,0); 69 VERIFY( f_tmp.check_pointers() ); 70 } 71 72 { 73 testbuf f_tmp; 74 75 f_tmp.open(name_01, ios_base::out | ios_base::in); 76 f_tmp.sbumpc(); 77 78 // setbuf 79 // pubsetbuf(char_type* s, streamsize n) 80 f_tmp.pubsetbuf(0, 0); 81 VERIFY( f_tmp.check_pointers() ); 82 } 83} 84 85int main() 86{ 87 test05(); 88 return 0; 89} 90