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archive_version.hpp
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1 /*********************************************************************/
2 // dar - disk archive - a backup/restoration program
3 // Copyright (C) 2002-2052 Denis Corbin
4 //
5 // This program is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License
7 // as published by the Free Software Foundation; either version 2
8 // of the License, or (at your option) any later version.
9 //
10 // This program is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 //
19 // to contact the author : http://dar.linux.free.fr/email.html
20 /*********************************************************************/
21
25
26 #ifndef ARCHIVE_VERSION_HPP
27 #define ARCHIVE_VERSION_HPP
28
29 #include "../my_config.h"
30
31 #include <string>
32
33 #include "integers.hpp"
34 #include "infinint.hpp"
35 #include "generic_file.hpp"
36
37 namespace libdar
38 {
39
42
44 class archive_version
45 {
46 public:
48
54 archive_version(U_16 x = 0, unsigned char fix = 0);
55
56 bool operator < (const archive_version & ref) const { return value() < ref.value(); };
57 bool operator >= (const archive_version & ref) const { return value() >= ref.value(); };
58 bool operator == (const archive_version & ref) const { return value() == ref.value(); };
59 bool operator != (const archive_version & ref) const { return value() != ref.value(); };
60 bool operator > (const archive_version & ref) const { return value() > ref.value(); };
61 bool operator <= (const archive_version & ref) const { return value() <= ref.value(); };
62
63 void dump(generic_file & f) const;
64 void read(generic_file & f);
65 std::string display() const;
66
67 private:
68 U_16 version;
69 unsigned char fix;
70
71 U_I value() const { return (U_I)(version)*256 + fix; };
72 static unsigned char to_digit(unsigned char val);
73 static unsigned char to_char(unsigned char val);
74 };
75
76 extern const archive_version empty_archive_version();
77
79
80 } // end of namespace
81
82 #endif
integers.hpp
are defined here basic integer types that tend to be portable
generic_file.hpp
class generic_file is defined here as well as class fichierthe generic_file interface is widely used ...
infinint.hpp
switch module to limitint (32 ou 64 bits integers) or infinint
libdar::generic_file
this is the interface class from which all other data transfer classes inherit
Definition: generic_file.hpp:100
libdar::archive_version
class archive_version manages the version of the archive format
Definition: archive_version.hpp:44
libdar::archive_version::archive_version
archive_version(U_16 x=0, unsigned char fix=0)
archive_version constructor
libdar
libdar namespace encapsulate all libdar symbols
Definition: archive.hpp:47