1// 1999-10-11 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21
22// 27.5.2 template class basic_streambuf
23
24#include <cstring> // for memset, memcmp
25#include <streambuf>
26#include <sstream>
27#include <ostream>
28#include <testsuite_hooks.h>
29
30// libstdc++/9424
31class Outbuf_2 : public std::streambuf
32{
33  char buf[1];
34
35public:
36  Outbuf_2()
37  {
38    setp(buf, buf + 1);
39  }
40
41  int_type overflow(int_type c)
42  {
43    int_type eof = traits_type::eof();
44
45    if (pptr() < epptr())
46      {
47	if (traits_type::eq_int_type(c, eof))
48	  return traits_type::not_eof(c);
49
50	*pptr() = traits_type::to_char_type(c);
51	pbump(1);
52	return c;
53      }
54
55    return eof;
56  }
57};
58
59class Inbuf_2 : public std::streambuf
60{
61  static const char buf[];
62  const char* current;
63  int size;
64
65public:
66  Inbuf_2()
67  {
68    current = buf;
69    size = std::strlen(buf);
70  }
71
72  int_type underflow()
73  {
74    if (current < buf + size)
75      return traits_type::to_int_type(*current);
76    return traits_type::eof();
77  }
78
79  int_type uflow()
80  {
81    if (current < buf + size)
82      return traits_type::to_int_type(*current++);
83    return traits_type::eof();
84  }
85};
86
87const char Inbuf_2::buf[] = "Atteivlis";
88
89void test12()
90{
91  bool test __attribute__((unused)) = true;
92
93  Outbuf_2 outbuf2;
94  std::ostream os (&outbuf2);
95  Inbuf_2 inbuf2;
96  os << &inbuf2;
97  VERIFY( inbuf2.sgetc() == 't' );
98  VERIFY( os.good() );
99}
100
101int main()
102{
103  test12();
104  return 0;
105}
106