1// 1999-10-11 bkoz
2
3// Copyright (C) 1999, 2000, 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// As a special exception, you may use this file as part of a free software
22// library without restriction.  Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License.  This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30// 27.5.2 template class basic_streambuf
31
32#include <cwchar>
33#include <streambuf>
34#include <sstream>
35#include <ostream>
36#include <testsuite_hooks.h>
37
38// libstdc++/9424
39class Outbuf_2 : public std::wstreambuf
40{
41  wchar_t buf[1];
42
43public:
44  Outbuf_2()
45  {
46    setp(buf, buf + 1);
47  }
48
49  int_type overflow(int_type c)
50  {
51    int_type eof = traits_type::eof();
52
53    if (pptr() < epptr())
54      {
55	if (traits_type::eq_int_type(c, eof))
56	  return traits_type::not_eof(c);
57
58	*pptr() = traits_type::to_char_type(c);
59	pbump(1);
60	return c;
61      }
62
63    return eof;
64  }
65};
66
67class Inbuf_2 : public std::wstreambuf
68{
69  static const wchar_t buf[];
70  const wchar_t* current;
71  int size;
72
73public:
74  Inbuf_2()
75  {
76    current = buf;
77    size = std::wcslen(buf);
78  }
79
80  int_type underflow()
81  {
82    if (current < buf + size)
83      return traits_type::to_int_type(*current);
84    return traits_type::eof();
85  }
86
87  int_type uflow()
88  {
89    if (current < buf + size)
90      return traits_type::to_int_type(*current++);
91    return traits_type::eof();
92  }
93};
94
95const wchar_t Inbuf_2::buf[] = L"Atteivlis";
96
97void test12()
98{
99  bool test __attribute__((unused)) = true;
100
101  Outbuf_2 outbuf2;
102  std::wostream os (&outbuf2);
103  Inbuf_2 inbuf2;
104  os << &inbuf2;
105  VERIFY( inbuf2.sgetc() == L't' );
106  VERIFY( os.good() );
107}
108
109int main()
110{
111  test12();
112  return 0;
113}
114