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