1// Copyright (C) 2004-2015 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 3, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING3.  If not see
16// <http://www.gnu.org/licenses/>.
17
18
19// 27.5.2 template class basic_streambuf
20
21#include <cstring>
22#include <cwchar>
23#include <streambuf>
24#include <sstream>
25#include <ostream>
26#include <testsuite_hooks.h>
27
28// libstdc++/9424
29class Outbuf_2 : public std::wstreambuf
30{
31  wchar_t buf[1];
32
33public:
34  Outbuf_2()
35  {
36    setp(buf, buf + 1);
37  }
38
39  int_type overflow(int_type c)
40  {
41    int_type eof = traits_type::eof();
42
43    if (pptr() < epptr())
44      {
45	if (traits_type::eq_int_type(c, eof))
46	  return traits_type::not_eof(c);
47
48	*pptr() = traits_type::to_char_type(c);
49	pbump(1);
50	return c;
51      }
52
53    return eof;
54  }
55};
56
57class Inbuf_2 : public std::wstreambuf
58{
59  static const wchar_t buf[];
60  const wchar_t* current;
61  int size;
62
63public:
64  Inbuf_2()
65  {
66    current = buf;
67    size = std::wcslen(buf);
68  }
69
70  int_type underflow()
71  {
72    if (current < buf + size)
73      return traits_type::to_int_type(*current);
74    return traits_type::eof();
75  }
76
77  int_type uflow()
78  {
79    if (current < buf + size)
80      return traits_type::to_int_type(*current++);
81    return traits_type::eof();
82  }
83};
84
85const wchar_t Inbuf_2::buf[] = L"Atteivlis";
86
87void test11()
88{
89  bool test __attribute__((unused)) = true;
90
91  Inbuf_2 inbuf1;
92  std::wistream is(&inbuf1);
93  Outbuf_2 outbuf1;
94  is >> &outbuf1;
95  VERIFY( inbuf1.sgetc() == L't' );
96  VERIFY( is.good() );
97}
98
99int main()
100{
101  test11();
102  return 0;
103}
104