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gsetter.h
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1 //
2 // Copyright (C) 2001-2013 Graeme Walker <graeme_walker@users.sourceforge.net>
3 //
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
8 //
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
16 // ===
20
21 #ifndef G_SETTER_H
22 #define G_SETTER_H
23
24 #include "gdef.h"
25 #include "gnoncopyable.h"
26
28 namespace G
29 {
30 class Setter ;
31 }
32
36 class G::Setter : public G::noncopyable
37 {
38 public:
39 explicit Setter( bool & b ) ;
41
42 ~Setter() ;
44
45 private:
46 bool & m_b ;
47 } ;
48
49 inline
50 G::Setter::Setter( bool & b ) :
51 m_b(b)
52 {
53 m_b = true ;
54 }
55
56 inline
57 G::Setter::~Setter()
58 {
59 m_b = false ;
60 }
61
62 #endif
63
G::noncopyable
A noncopyable base class (a la boost).
Definition: gnoncopyable.h:35
G::Setter
A class to manage a boolean flag while in scope.
Definition: gsetter.h:36
G::Setter::~Setter
~Setter()
Destructor. Resets the flag.
Definition: gsetter.h:57
G
Low-level classes.
G::Setter::Setter
Setter(bool &b)
Constructor. Sets the flag.
Definition: gsetter.h:50
gnoncopyable.h