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
70
71
72
73
74
75
76
77
78
79
80
81
|
/*
* interval.h -- ePiX::interval class and operations
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.0.25
* Last Change: May 20, 2007
*
*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
* Andrew D. Hwang <ahwang -at- holycross -dot- edu>
* Department of Mathematics and Computer Science
* College of the Holy Cross
* Worcester, MA, 01610-2395, USA
*
*
* ePiX 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.
*
* ePiX 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 ePiX; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
* This file provides the interval class:
*
* - Minkowski sum, intersection
*/
#ifndef EPIX_INTERVAL
#define EPIX_INTERVAL
#include <string>
namespace ePiX {
class interval {
public:
interval(std::string); // allow implicit conversion, must mangle argument
interval(double, double); // closed interval
static interval emptyset;
double min() const;
double max() const;
double avg() const;
bool contains(double) const;
// Minkowski sum
interval& operator +=(const interval&);
// intersection
interval& operator *=(const interval&);
bool operator== (const interval&) const;
bool operator!= (const interval&) const;
bool is_empty() const;
private:
double m_rmin, m_rmax;
bool m_closed_l, m_closed_r;
static interval literal(double a, double b); // can force b<a
}; // end of interval class
interval operator+ (interval I1, const interval& I2);
interval operator* (interval I1, const interval& I2);
} // end of namespace
#endif /* EPIX_INTERVAL */
|
