1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/* c_streambuf class declaration.
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)
This file is part of the Parma Polyhedra Library (PPL).
The PPL is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The PPL is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */
#ifndef PPL_c_streambuf_defs_hh
#define PPL_c_streambuf_defs_hh 1
#include "c_streambuf.types.hh"
#include <streambuf>
class Parma_Polyhedra_Library::c_streambuf
: public std::basic_streambuf<char, std::char_traits<char> > {
public:
//! Constructor.
c_streambuf();
//! Destructor.
virtual ~c_streambuf();
protected:
/*! \brief
Gets a character in case of underflow.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.3.
*/
int_type underflow();
/*! \brief
In case of underflow, gets a character and advances the next pointer.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.3.
*/
int_type uflow();
/*! \brief
Gets a sequence of characters.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.3.
*/
std::streamsize xsgetn(char_type* s, std::streamsize n);
/*! \brief
Puts character back in case of backup underflow.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.4.
*/
int_type pbackfail(int_type c = traits_type::eof());
/*! \brief
Writes a sequence of characters.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.5.
*/
std::streamsize xsputn(const char_type* s, std::streamsize n);
/*! \brief
Writes a character in case of overflow.
Specified by ISO/IEC 14882:1998: 27.5.2.4.5.
*/
int_type overflow(int_type c);
/*! \brief
Synchronizes the stream buffer.
Specified by ISO/IEC 14882:1998: 27.5.2.4.2.
*/
int sync();
private:
//! Character type of the streambuf.
typedef char char_type;
//! Traits type of the streambuf.
typedef std::char_traits<char_type> traits_type;
//! Integer type of the streambuf.
typedef traits_type::int_type int_type;
//! Buffer for the last character read.
int_type ungetc_buf;
//! Buffer for next character
int_type nextc_buf;
virtual size_t cb_read(char *, size_t) {
return 0;
}
virtual size_t cb_write(const char *, size_t) {
return 0;
}
virtual int cb_sync() {
return 0;
}
virtual int cb_flush() {
return 0;
}
};
#include "c_streambuf.inlines.hh"
#endif // !defined(PPL_c_streambuf_defs_hh)
|
