MPQC 2.3.1

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units.h
1 //
2 // units.h
3 //
4 // Copyright (C) 1997 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27
28 #ifdef __GNUG__
29 #pragma interface
30 #endif
31
32 #ifndef _util_misc_units_h
33 #define _util_misc_units_h
34
35 #include <util/class/class.h>
36 #include <util/state/state.h>
37 #include <util/ref/ref.h>
38
39 namespace sc {
40
42 class Units: public SavableState {
43 protected:
44 char *strrep_;
45 double to_atomic_units_;
46
47 void parse_unit();
48 public:
49 enum Storage { Steal, Copy };
50
52 Units(const char *strrep);
57 Units(char *strrep, Units::Storage = Units::Copy);
59 Units(StateIn& s);
60 ~Units();
61
63 double to(const Ref<Units> &u) const;
65 double from(const Ref<Units> &u) const;
66
68 double to_atomic_units() const;
70 double from_atomic_units() const;
71
73 const char *string_rep() const;
74
76 void save_data_state(StateOut&s);
77 };
78
79 }
80
81 #endif
82
83 // Local Variables:
84 // mode: c++
85 // c-file-style: "CLJ"
86 // End: