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
|
/* This file is part of the FaCT++ DL reasoner
Copyright (C) 2005-2015 Dmitry Tsarkov and The University of Manchester
Copyright (C) 2015-2016 Dmitry Tsarkov
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef FLAGS_H
#define FLAGS_H
/// class for carrying different flags; real users shall inherit from it
class Flags
{
private:
/// variable to keep all the flags
unsigned int flags;
protected: // methods for flags maintainance
/// get given flag value
bool getFlag ( unsigned int mask ) const { return (flags & mask) != 0; }
/// set given flag to 1
void setFlag ( unsigned int mask ) { flags |= mask; }
/// set given flag to 0
void clearFlag ( unsigned int mask ) { flags &= ~mask; }
/// set given flag to given value
void setFlag ( unsigned int mask, bool Set ) { Set ? setFlag(mask) : clearFlag(mask); }
/// get all the flags at once
unsigned int getAllFlags ( void ) const { return flags; }
/// set all flags to a given value; @return old value of the flags
unsigned int setAllFlags ( unsigned int value ) { unsigned int old = flags; flags = value; return old; }
public: // interface
/// empty c'tor
Flags ( void ) : flags(0) {}
/// init flags with given set of flags
explicit Flags ( unsigned int init ) : flags(init) {}
/// copy c'tor
Flags ( const Flags& f ) : flags(f.flags) {}
/// assignment
Flags& operator = ( const Flags& f ) { flags = f.flags; return *this; }
/// empty d'tor
virtual ~Flags ( void ) {}
}; // Flags
// use this macro to create a new flag
#define FPP_ADD_FLAG(Name,Mask) \
bool is##Name ( void ) const \
{ return getFlag(Mask); } \
void set##Name ( void ) \
{ setFlag(Mask); } \
void clear##Name ( void ) \
{ clearFlag(Mask); } \
void set##Name ( bool action ) \
{ setFlag(Mask,action); } \
#endif
|
