Created by Scott Robert Ladd at Coyote Gulch Productions.
00001 /* 00002 Evocosm is a C++ framework for implementing evolutionary algorithms. 00003 00004 Copyright 2011 Scott Robert Ladd. All rights reserved. 00005 00006 Evocosm is user-supported open source software. Its continued development is dependent 00007 on financial support from the community. You can provide funding by visiting the Evocosm 00008 website at: 00009 00010 http://www.coyotegulch.com 00011 00012 You may license Evocosm in one of two fashions: 00013 00014 1) Simplified BSD License (FreeBSD License) 00015 00016 Redistribution and use in source and binary forms, with or without modification, are 00017 permitted provided that the following conditions are met: 00018 00019 1. Redistributions of source code must retain the above copyright notice, this list of 00020 conditions and the following disclaimer. 00021 00022 2. Redistributions in binary form must reproduce the above copyright notice, this list 00023 of conditions and the following disclaimer in the documentation and/or other materials 00024 provided with the distribution. 00025 00026 THIS SOFTWARE IS PROVIDED BY SCOTT ROBERT LADD ``AS IS'' AND ANY EXPRESS OR IMPLIED 00027 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 00028 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SCOTT ROBERT LADD OR 00029 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00030 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00031 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 00032 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00033 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 00034 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00035 00036 The views and conclusions contained in the software and documentation are those of the 00037 authors and should not be interpreted as representing official policies, either expressed 00038 or implied, of Scott Robert Ladd. 00039 00040 2) Closed-Source Proprietary License 00041 00042 If your project is a closed-source or proprietary project, the Simplified BSD License may 00043 not be appropriate or desirable. In such cases, contact the Evocosm copyright holder to 00044 arrange your purchase of an appropriate license. 00045 00046 The author can be contacted at: 00047 00048 scott.ladd@coyotegulch.com 00049 scott.ladd@gmail.com 00050 http:www.coyotegulch.com 00051 */ 00052 00053 #if !defined(LIBEVOCOSM_EVOCOMMON_H) 00054 #define LIBEVOCOSM_EVOCOMMON_H 00055 00056 // Brahe library 00057 #include "libbrahe/prng.h" 00058 00059 // Standard C++ Library 00060 #include <string> 00061 00062 namespace libevocosm 00063 { 00065 00069 class prng 00070 { 00071 private: 00072 brahe_prng_state_t m_random; 00073 00074 public: 00076 prng() 00077 { 00078 brahe_prng_init(&m_random,BRAHE_PRNG_MWC1038,0); 00079 } 00080 00082 ~prng() 00083 { 00084 brahe_prng_free(&m_random); 00085 } 00086 00088 void set_seed(uint32_t a_seed) 00089 { 00090 brahe_prng_init(&m_random,BRAHE_PRNG_MWC1038,a_seed); 00091 } 00092 00094 uint32_t get_seed() 00095 { 00096 return m_random.m_seed; 00097 } 00098 00100 size_t get_index(size_t n) 00101 { 00102 return brahe_prng_index(&m_random,n); 00103 } 00104 00106 double get_real() 00107 { 00108 return brahe_prng_real2(&m_random); 00109 } 00110 }; 00111 00113 00117 class globals 00118 { 00119 protected: 00121 static size_t rand_index(size_t n) 00122 { 00123 return g_random.get_index(n); 00124 } 00125 00127 static prng g_random; 00128 00130 static std::string g_version; 00131 00132 public: 00134 static void set_seed(uint32_t a_seed) 00135 { 00136 g_random.set_seed(a_seed); 00137 } 00138 00140 static uint32_t get_seed() 00141 { 00142 return g_random.get_seed(); 00143 } 00144 00146 static std::string version() 00147 { 00148 return g_version; 00149 } 00150 }; 00151 00152 } 00153 00154 #endif
© 1996-2005 Scott Robert Ladd. All rights reserved.
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