Disk ARchive 2.7.16
Full featured and portable backup and archiving tool
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archive_version.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2024 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18//
19// to contact the author, see the AUTHOR file
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
35namespace libdar
36{
37
40
41 // no need to dig into this from API
42 class generic_file;
43
45
47 {
48 public:
50
56 archive_version(U_16 x = 0, unsigned char fix = 0);
57
58 archive_version(const archive_version & ref) = default;
59 archive_version(archive_version && ref) noexcept = default;
60 archive_version & operator = (const archive_version & ref) = default;
61 archive_version & operator = (archive_version && ref) noexcept = default;
62 ~archive_version() = default;
63
64 bool operator < (const archive_version & ref) const { return value() < ref.value(); };
65 bool operator >= (const archive_version & ref) const { return value() >= ref.value(); };
66 bool operator == (const archive_version & ref) const { return value() == ref.value(); };
67 bool operator != (const archive_version & ref) const { return value() != ref.value(); };
68 bool operator > (const archive_version & ref) const { return value() > ref.value(); };
69 bool operator <= (const archive_version & ref) const { return value() <= ref.value(); };
70
71 void dump(generic_file & f) const;
72 void read(generic_file & f);
73
75 std::string display() const;
76
77 private:
78 U_16 version;
79 unsigned char fix;
80
81 U_I value() const { return (U_I)(version)*256 + fix; };
82 static unsigned char to_digit(unsigned char val);
83 static unsigned char to_char(unsigned char val);
84 };
85
86 extern const archive_version empty_archive_version();
87
89
90} // end of namespace
91
92#endif
class archive_version manages the version of the archive format
std::string display() const
provides the version information as a human readable string
archive_version(U_16 x=0, unsigned char fix=0)
archive_version constructor
are defined here basic integer types that tend to be portable
include macro defined by the configure script and some specific additional ones
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47