1// 1999-10-11 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
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 2, 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 COPYING.  If not, write to the Free
19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
20// USA.
21
22// As a special exception, you may use this file as part of a free software
23// library without restriction.  Specifically, if other files instantiate
24// templates or use macros or inline functions from this file, or you compile
25// this file and link it with other files to produce an executable, this
26// file does not by itself cause the resulting executable to be covered by
27// the GNU General Public License.  This exception does not however
28// invalidate any other reasons why the executable file might be covered by
29// the GNU General Public License.
30
31// 27.5.2 template class basic_streambuf
32
33#include <streambuf>
34#include <cwchar>
35#include <testsuite_hooks.h>
36
37class testbuf : public std::wstreambuf
38{
39public:
40
41  // Typedefs:
42  typedef std::wstreambuf::traits_type traits_type;
43  typedef std::wstreambuf::char_type char_type;
44
45  testbuf(): std::wstreambuf()
46  { }
47
48  bool
49  check_pointers()
50  {
51    bool test __attribute__((unused)) = true;
52    VERIFY( this->eback() == NULL );
53    VERIFY( this->gptr() == NULL );
54    VERIFY( this->egptr() == NULL );
55    VERIFY( this->pbase() == NULL );
56    VERIFY( this->pptr() == NULL );
57    VERIFY( this->epptr() == NULL );
58    return test;
59  }
60
61  int_type
62  pub_uflow()
63  { return (this->uflow()); }
64
65  int_type
66  pub_overflow(int_type __c = traits_type::eof())
67  { return (this->overflow(__c)); }
68
69  int_type
70  pub_pbackfail(int_type __c)
71  { return (this->pbackfail(__c)); }
72
73  void
74  pub_setg(wchar_t* beg, wchar_t* cur, wchar_t* end)
75  { this->setg(beg, cur, end); }
76
77  void
78  pub_setp(wchar_t* beg, wchar_t* end)
79  { this->setp(beg, end); }
80
81protected:
82  int_type
83  underflow()
84  {
85    int_type __retval = traits_type::eof();
86    if (this->gptr() < this->egptr())
87      __retval = traits_type::not_eof(0);
88    return __retval;
89  }
90};
91
92void test02()
93{
94  typedef testbuf::traits_type traits_type;
95  typedef testbuf::int_type int_type;
96
97  bool test __attribute__((unused)) = true;
98
99  wchar_t lit01[] = L"chicago underground trio/possible cube on delmark";
100  size_t i01 = traits_type::length(lit01);
101
102  testbuf buf01;
103
104  // 27.5.2.1 basic_streambuf ctors
105  // default ctor initializes
106  // - all pointer members to null pointers
107  // - locale to current global locale
108  VERIFY( buf01.check_pointers() );
109  VERIFY( buf01.getloc() == std::locale() );
110
111  // 27.5.2.2.5 Put area
112
113  wchar_t carray01[i01];
114  std::wmemset(carray01, 0, i01);
115
116  buf01.pub_setg(lit01, lit01, lit01 + i01);
117  buf01.sgetn(carray01, 0);
118  VERIFY( carray01[0] == 0 );
119  buf01.sgetn(carray01, 1);
120  VERIFY( carray01[0] == L'c' );
121  buf01.sgetn(carray01 + 1, i01 - 1);
122  VERIFY( carray01[0] == L'c' );
123  VERIFY( carray01[1] == L'h' );
124  VERIFY( carray01[i01 - 1] == L'k' );
125}
126
127int main()
128{
129  test02();
130  return 0;
131}
132