1// 1999-10-11 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 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 <cstring>
26#include <testsuite_hooks.h>
27
28class testbuf : public std::streambuf
29{
30public:
31
32  // Typedefs:
33  typedef std::streambuf::traits_type traits_type;
34  typedef std::streambuf::char_type char_type;
35
36  testbuf(): std::streambuf()
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(char* beg, char* cur, char *end)
66  { this->setg(beg, cur, end); }
67
68  void
69  pub_setp(char* beg, char* 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  testbuf buf01;
90
91  // sputn/xsputn
92  char lit02[] = "isotope 217: the unstable molecule on thrill jockey";
93  const int i02 = std::strlen(lit02);
94
95  char carray[i02 + 1];
96  std::memset(carray, 0, i02 + 1);
97
98  buf01.pub_setp(carray, (carray + i02));
99  buf01.sputn(lit02, 0);
100  VERIFY( carray[0] == 0 );
101  VERIFY( lit02[0] == 'i' );
102  buf01.sputn(lit02, 1);
103  VERIFY( lit02[0] == carray[0] );
104  VERIFY( lit02[1] == 's' );
105  VERIFY( carray[1] == 0 );
106  buf01.sputn(lit02 + 1, 10);
107  VERIFY( std::memcmp(lit02, carray, 10) == 0 );
108  buf01.sputn(lit02 + 11, 20);
109  VERIFY( std::memcmp(lit02, carray, 30) == 0 );
110}
111
112int main()
113{
114  test01();
115  return 0;
116}
117