Evocosm - A C++ Framework for Evolutionary Computing

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Created by Scott Robert Ladd at Coyote Gulch Productions.


evoreal.h
1 /*
2  Evocosm is a C++ framework for implementing evolutionary algorithms.
3 
4  Copyright 2011 Scott Robert Ladd. All rights reserved.
5 
6  Evocosm is user-supported open source software. Its continued development is dependent
7  on financial support from the community. You can provide funding by visiting the Evocosm
8  website at:
9 
10  http://www.coyotegulch.com
11 
12  You may license Evocosm in one of two fashions:
13 
14  1) Simplified BSD License (FreeBSD License)
15 
16  Redistribution and use in source and binary forms, with or without modification, are
17  permitted provided that the following conditions are met:
18 
19  1. Redistributions of source code must retain the above copyright notice, this list of
20  conditions and the following disclaimer.
21 
22  2. Redistributions in binary form must reproduce the above copyright notice, this list
23  of conditions and the following disclaimer in the documentation and/or other materials
24  provided with the distribution.
25 
26  THIS SOFTWARE IS PROVIDED BY SCOTT ROBERT LADD ``AS IS'' AND ANY EXPRESS OR IMPLIED
27  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
28  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SCOTT ROBERT LADD OR
29  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
32  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
34  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 
36  The views and conclusions contained in the software and documentation are those of the
37  authors and should not be interpreted as representing official policies, either expressed
38  or implied, of Scott Robert Ladd.
39 
40  2) Closed-Source Proprietary License
41 
42  If your project is a closed-source or proprietary project, the Simplified BSD License may
43  not be appropriate or desirable. In such cases, contact the Evocosm copyright holder to
44  arrange your purchase of an appropriate license.
45 
46  The author can be contacted at:
47 
48  scott.ladd@coyotegulch.com
49  scott.ladd@gmail.com
50  http:www.coyotegulch.com
51 */
52 
53 #if !defined(LIBEVOCOSM_EVOREAL_H)
54 #define LIBEVOCOSM_EVOREAL_H
55 
56 // libevocosm
57 #include "evocommon.h"
58 
59 namespace libevocosm
60 {
62 
85  class evoreal : protected globals
86  {
87  public:
89 
104  evoreal(float a_sign_weight = 5.0F, float a_exponent_weight = 5.0F, float a_mantissa_weight = 90.0F);
105 
107 
111  evoreal(evoreal & a_source);
112 
114 
118  evoreal & operator = (evoreal & a_source);
119 
121 
126  float mutate(float a_f);
127 
129 
134  double mutate(double a_d);
135 
137 
144  float crossover(float a_f1, float a_f2);
145 
147 
154  double crossover(double a_d1, double a_d2);
155 
156  private:
157  // weights used to select parts of a number for manipulation
158  const float m_total_weight;
159  const float m_sign_weight;
160  const float m_exp_weight;
161 
162 #if defined(_MSC_VER) && (_MSC_VER < 1300)
163  static const long FLT_EXP_BITS;
164  static const long DBL_EXP_BITS;
165 #else
166  static const long FLT_EXP_BITS = 0x7F800000L;
167  static const long DBL_EXP_BITS = 0x7FF00000UL;
168 #endif
169  };
170 }
171 
172 #endif
173 
float crossover(float a_f1, float a_f2)
Crossover for float values.
evoreal & operator=(evoreal &a_source)
Assignment.
A toolkit and framework for implementing evolutionary algorithms.
Definition: analyzer.h:60
Elements shared by all classes in Evocosm.
Definition: evocommon.h:117
Tools for evolving real numbers.
Definition: evoreal.h:85
float mutate(float a_f)
Mutation for float values.
evoreal(float a_sign_weight=5.0F, float a_exponent_weight=5.0F, float a_mantissa_weight=90.0F)
Creation constructor.

© 1996-2005 Scott Robert Ladd. All rights reserved.
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