modules/up/src/Core/gnu/Uniform.h
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FUNCTIONS
This source file includes following functions.
- Uniform
- Uniform
- low
- low
- high
- high
1 // This may look like C code, but it is really -*- C++ -*-
2 /*
3 Copyright (C) 1988 Free Software Foundation
4 written by Dirk Grunwald (grunwald@cs.uiuc.edu)
5
6 This file is part of the GNU C++ Library. This library is free
7 software; you can redistribute it and/or modify it under the terms of
8 the GNU Library General Public License as published by the Free
9 Software Foundation; either version 2 of the License, or (at your
10 option) any later version. This library is distributed in the hope
11 that it will be useful, but WITHOUT ANY WARRANTY; without even the
12 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
13 PURPOSE. See the GNU Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this library; if not, write to the Free Software
16 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18 #ifndef _Uniform_h
19 #ifdef __GNUG__
20 #pragma interface
21 #endif
22 #define _Uniform_h 1
23
24 #include "gnu/Random.h"
25
26 //
27 // The interval [lo..hi]
28 //
29
30 class Uniform: public Random {
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31 double pLow;
32 double pHigh;
33 double delta;
34 public:
35 Uniform(double low, double high, RNG *gen);
36
37 double low();
38 double low(double x);
39 double high();
40 double high(double x);
41
42 virtual double operator()();
43 };
44
45
46 inline Uniform::Uniform(double low, double high, RNG *gen) : Random(gen)
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47 {
48 pLow = (low < high) ? low : high;
49 pHigh = (low < high) ? high : low;
50 delta = pHigh - pLow;
51 }
52
53 inline double Uniform::low() { return pLow; }
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54
55 inline double Uniform::low(double x) {
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56 double tmp = pLow;
57 pLow = x;
58 delta = pHigh - pLow;
59 return tmp;
60 }
61
62 inline double Uniform::high() { return pHigh; }
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63
64 inline double Uniform::high(double x) {
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65 double tmp = pHigh;
66 pHigh = x;
67 delta = pHigh - pLow;
68 return tmp;
69 }
70
71 #endif