1// 1999-10-11 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 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 <testsuite_hooks.h>
35
36class testbuf : public std::streambuf
37{
38public:
39
40  // Typedefs:
41  typedef std::streambuf::traits_type traits_type;
42  typedef std::streambuf::char_type char_type;
43
44  testbuf(): std::streambuf()
45  { }
46
47  bool
48  check_pointers()
49  {
50    bool test __attribute__((unused)) = true;
51    VERIFY( this->eback() == NULL );
52    VERIFY( this->gptr() == NULL );
53    VERIFY( this->egptr() == NULL );
54    VERIFY( this->pbase() == NULL );
55    VERIFY( this->pptr() == NULL );
56    VERIFY( this->epptr() == NULL );
57    return test;
58  }
59
60  int_type
61  pub_uflow()
62  { return (this->uflow()); }
63
64  int_type
65  pub_overflow(int_type __c = traits_type::eof())
66  { return (this->overflow(__c)); }
67
68  int_type
69  pub_pbackfail(int_type __c)
70  { return (this->pbackfail(__c)); }
71
72  void
73  pub_setg(char* beg, char* cur, char *end)
74  { this->setg(beg, cur, end); }
75
76  void
77  pub_setp(char* beg, char* end)
78  { this->setp(beg, end); }
79
80protected:
81  int_type
82  underflow()
83  {
84    int_type __retval = traits_type::eof();
85    if (this->gptr() < this->egptr())
86      __retval = traits_type::not_eof(0);
87    return __retval;
88  }
89};
90
91void test01()
92{
93  typedef testbuf::traits_type traits_type;
94  typedef testbuf::int_type int_type;
95
96  bool test __attribute__((unused)) = true;
97  testbuf buf01;
98
99  // sputn/xsputn
100  char lit02[] = "isotope 217: the unstable molecule on thrill jockey";
101  const int i02 = std::strlen(lit02);
102
103  char carray[i02 + 1];
104  std::memset(carray, 0, i02 + 1);
105
106  buf01.pub_setp(carray, (carray + i02));
107  buf01.sputn(lit02, 0);
108  VERIFY( carray[0] == 0 );
109  VERIFY( lit02[0] == 'i' );
110  buf01.sputn(lit02, 1);
111  VERIFY( lit02[0] == carray[0] );
112  VERIFY( lit02[1] == 's' );
113  VERIFY( carray[1] == 0 );
114  buf01.sputn(lit02 + 1, 10);
115  VERIFY( std::memcmp(lit02, carray, 10) == 0 );
116  buf01.sputn(lit02 + 11, 20);
117  VERIFY( std::memcmp(lit02, carray, 30) == 0 );
118}
119
120int main()
121{
122  test01();
123  return 0;
124}
125