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_snextc_2io.tst"; // empty file, need to create
32
33void test05()
34{
35  using namespace std;
36  using namespace __gnu_test;
37  typedef filebuf::int_type 	int_type;
38  typedef filebuf::traits_type 	traits_type;
39
40  bool test __attribute__((unused)) = true;
41  int_type 			c1, c3;
42
43  // int_type snextc()
44  // calls sbumpc and if sbumpc != eof, return sgetc
45
46  // in | out 1
47  {
48    constraint_filebuf fb_03;
49    fb_03.pubsetbuf(0, 0);
50    fb_03.open(name_03, ios_base::out | ios_base::in | ios_base::trunc);
51    VERIFY( fb_03.unbuffered() );
52    c3 = fb_03.snextc();
53    VERIFY( c3 == traits_type::eof() );
54    VERIFY( fb_03.unbuffered() );
55  }
56
57  // in | out 2
58  {
59    constraint_filebuf fb_01;
60    fb_01.pubsetbuf(0, 0);
61    fb_01.open(name_01, ios_base::in | ios_base::out);
62    VERIFY( fb_01.unbuffered() );
63    int_type c4 = fb_01.sbumpc();
64    VERIFY( c4 == '/' );
65    c4 = fb_01.sbumpc();
66    VERIFY( c4 == '/' );
67    c4 = fb_01.sgetc();
68    VERIFY( c4 == ' ' );
69    c1 = fb_01.snextc();
70    VERIFY( c1 == '9' );
71    c4 = fb_01.sgetc();
72    VERIFY( c4 == '9' );
73    VERIFY( fb_01.unbuffered() );
74  }
75}
76
77int main()
78{
79  test05();
80  return 0;
81}
82