1// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
2
3// Copyright (C) 2001-2015 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#include <fstream>
23#include <testsuite_hooks.h>
24#include <testsuite_io.h>
25
26// @require@ %-*.tst %-*.txt
27// @diff@ %-*.tst %*.txt
28
29const char name_02[] = "tmp_sgetc_2out.tst"; // empty file, need to create
30
31// Test overloaded virtual functions.
32void test05()
33{
34  using namespace std;
35  using namespace __gnu_test;
36  typedef std::filebuf::int_type 	int_type;
37  typedef filebuf::traits_type 		traits_type;
38
39  bool test __attribute__((unused)) = true;
40  int_type 			c1, c2;
41
42  // int_type sgetc()
43  // if read_cur not avail, return uflow(), else return *read_cur
44
45  // out
46  {
47    constraint_filebuf fb_02; // out
48    fb_02.pubsetbuf(0, 0);
49    fb_02.open(name_02, ios::out | ios::trunc);
50    VERIFY( fb_02.unbuffered() );
51    VERIFY( !fb_02.read_position() );
52    c1 = fb_02.sgetc();
53    VERIFY( c1 == traits_type::eof() );
54    c2 = fb_02.sgetc();
55    VERIFY( c2 == traits_type::eof() );
56    fb_02.sbumpc();
57    c1 = fb_02.sbumpc();
58    c2 = fb_02.sgetc();
59    VERIFY( c1 == c2 );
60    VERIFY( fb_02.unbuffered() );
61    VERIFY( !fb_02.read_position() );
62  }
63}
64
65int main()
66{
67  test05();
68  return 0;
69}
70