1// 1999-10-11 bkoz
2
3// Copyright (C) 1999-2015 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 3, 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 COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20
21// 27.5.2 template class basic_streambuf
22
23#include <streambuf>
24#include <cstring>
25#include <testsuite_hooks.h>
26
27class testbuf : public std::streambuf
28{
29public:
30
31  // Typedefs:
32  typedef std::streambuf::traits_type traits_type;
33  typedef std::streambuf::char_type char_type;
34
35  testbuf(): std::streambuf()
36  { }
37
38  bool
39  check_pointers()
40  {
41    bool test __attribute__((unused)) = true;
42    VERIFY( !this->eback() );
43    VERIFY( !this->gptr() );
44    VERIFY( !this->egptr() );
45    VERIFY( !this->pbase() );
46    VERIFY( !this->pptr() );
47    VERIFY( !this->epptr() );
48    return test;
49  }
50
51  int_type
52  pub_uflow()
53  { return (this->uflow()); }
54
55  int_type
56  pub_overflow(int_type __c = traits_type::eof())
57  { return (this->overflow(__c)); }
58
59  int_type
60  pub_pbackfail(int_type __c)
61  { return (this->pbackfail(__c)); }
62
63  void
64  pub_setg(char* beg, char* cur, char *end)
65  { this->setg(beg, cur, end); }
66
67  void
68  pub_setp(char* beg, char* end)
69  { this->setp(beg, end); }
70
71protected:
72  int_type
73  underflow()
74  {
75    int_type __retval = traits_type::eof();
76    if (this->gptr() < this->egptr())
77      __retval = traits_type::not_eof(0);
78    return __retval;
79  }
80};
81
82void test01()
83{
84  typedef testbuf::traits_type traits_type;
85  typedef testbuf::int_type int_type;
86
87  bool test __attribute__((unused)) = true;
88  char lit01[52];
89  std::strcpy(lit01, "chicago underground trio/possible cube on delmark");
90  testbuf buf01;
91
92  // 27.5.2.3.1 get area
93  // 27.5.2.2.3 get area
94  // 27.5.2.4.3 get area
95  int i01 = 3;
96  buf01.pub_setg(lit01, lit01, (lit01 + i01));
97  VERIFY( i01 == buf01.in_avail() );
98
99  VERIFY( buf01.pub_uflow() == traits_type::to_int_type(lit01[0]) );
100  VERIFY( buf01.sgetc() == traits_type::to_int_type(lit01[1]) );
101  VERIFY( buf01.pub_uflow() == traits_type::to_int_type(lit01[1]) );
102  VERIFY( buf01.sgetc() == traits_type::to_int_type(lit01[2]) );
103  VERIFY( buf01.pub_uflow() == traits_type::to_int_type(lit01[2]) );
104  VERIFY( buf01.sgetc() == traits_type::eof() );
105}
106
107int main()
108{
109  test01();
110  return 0;
111}
112