1// 1999-08-11 bkoz
2
3// Copyright (C) 1999-2015 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// 27.6.1.3 unformatted input functions
21
22#include <istream>
23#include <sstream>
24#include <testsuite_hooks.h>
25
26void
27test01()
28{
29  bool test __attribute__((unused)) = true;
30  const std::string str_01;
31  const std::string str_02("soul eyes: john coltrane quartet");
32  std::string strtmp;
33
34  std::stringbuf isbuf_03(str_02, std::ios_base::in);
35  std::stringbuf isbuf_04(str_02, std::ios_base::in);
36  std::stringbuf isbuf_05(str_02, std::ios_base::in);
37
38  std::istream is_00(&isbuf_05);
39  std::istream is_03(&isbuf_03);
40  std::istream is_04(&isbuf_04);
41  std::ios_base::iostate state1, state2;
42
43  // istream& putback(char c)
44  is_04.ignore(30);
45  is_04.clear();
46  state1 = is_04.rdstate();
47  is_04.putback('t');
48  VERIFY( is_04.gcount() == 0 );  // DR 60
49  state2 = is_04.rdstate();
50  VERIFY( state1 == state2 );
51  VERIFY( is_04.peek() == 't' );
52
53  // istream& unget()
54  is_04.clear();
55  state1 = is_04.rdstate();
56  is_04.unget();
57  VERIFY( is_04.gcount() == 0 );  // DR 60
58  state2 = is_04.rdstate();
59  VERIFY( state1 == state2 );
60  VERIFY( is_04.peek() == 'r' );
61
62  // int sync()
63  is_00.ignore(10);
64  int count1 = is_00.gcount();
65  is_00.sync();
66  int count2 = is_00.gcount();
67  VERIFY (count1 == count2 );     // DR 60
68}
69
70int
71main()
72{
73  test01();
74  return 0;
75}
76