1// 1999-10-11 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 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 <streambuf>
25#include <cwchar>
26#include <testsuite_hooks.h>
27
28class testbuf : public std::wstreambuf
29{
30public:
31
32  // Typedefs:
33  typedef std::wstreambuf::traits_type traits_type;
34  typedef std::wstreambuf::char_type char_type;
35
36  testbuf(): std::wstreambuf()
37  { }
38
39  bool
40  check_pointers()
41  {
42    bool test __attribute__((unused)) = true;
43    VERIFY( this->eback() == NULL );
44    VERIFY( this->gptr() == NULL );
45    VERIFY( this->egptr() == NULL );
46    VERIFY( this->pbase() == NULL );
47    VERIFY( this->pptr() == NULL );
48    VERIFY( this->epptr() == NULL );
49    return test;
50  }
51
52  int_type
53  pub_uflow()
54  { return (this->uflow()); }
55
56  int_type
57  pub_overflow(int_type __c = traits_type::eof())
58  { return (this->overflow(__c)); }
59
60  int_type
61  pub_pbackfail(int_type __c)
62  { return (this->pbackfail(__c)); }
63
64  void
65  pub_setg(wchar_t* beg, wchar_t* cur, wchar_t* end)
66  { this->setg(beg, cur, end); }
67
68  void
69  pub_setp(wchar_t* beg, wchar_t* end)
70  { this->setp(beg, end); }
71
72protected:
73  int_type
74  underflow()
75  {
76    int_type __retval = traits_type::eof();
77    if (this->gptr() < this->egptr())
78      __retval = traits_type::not_eof(0);
79    return __retval;
80  }
81};
82
83void test01()
84{
85  typedef testbuf::traits_type traits_type;
86  typedef testbuf::int_type int_type;
87
88  bool test __attribute__((unused)) = true;
89  wchar_t lit01[52];
90  std::wcscpy(lit01, L"chicago underground trio/possible cube on delmark");
91  testbuf buf01;
92
93  // pbackfail
94  int i01 = 3;
95  buf01.pub_setg(lit01, lit01, (lit01 + i01));
96  VERIFY( i01 == buf01.in_avail() );
97  int_type intt01 = traits_type::to_int_type(L'b');
98  VERIFY( traits_type::eof() == buf01.pub_pbackfail(intt01) );
99
100  // overflow
101  VERIFY( traits_type::eof() == buf01.pub_overflow(intt01) );
102  VERIFY( traits_type::eof() == buf01.pub_overflow() );
103  VERIFY( buf01.sgetc() == traits_type::to_int_type(lit01[0]) );
104}
105
106int main()
107{
108  test01();
109  return 0;
110}
111