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