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
|
// This file is part of PUMA.
// Copyright (C) 1999-2003 The PUMA developer team.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307 USA
#ifndef __pre_expr__
#define __pre_expr__
// Node class for the preprocessor expression parser.
#include "Puma/MappedOrangeRecognizer.h"
#include "Puma/Location.h"
#include "Puma/ScanBuffer.h"
namespace Puma {
class ErrorStream;
class PreExpr {
bool _result;
public:
double val;
// Public constructor.
PreExpr (ErrorStream *, Location);
// Do not use this contructors outside of the
// C preprocessor expression parser.
PreExpr () {};
~PreExpr () {};
PreExpr (unsigned long int value) : val ((double) value) {};
PreExpr (long int value) : val ((double) value) {};
PreExpr (double value) : val (value) {};
// Evaluate the given expression string.
void evaluatePreExpr (char *expression_string);
// Return value of evaluated expression.
bool value () const { return _result; }
// String conversion method.
static long int convertChar (char *value);
private:
static MappedOrangeRecognizer<ScanBuffer> token_recognizer;
};
} // namespace Puma
#endif /* __pre_expr__ */
|