blitz Version 0.10
blitz/random.h
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00001 // -*- C++ -*-
00002 /***************************************************************************
00003  * blitz/random.h       Random number generator wrapper class
00004  *
00005  * $Id: random.h,v 1.5 2011/03/25 22:41:16 julianc Exp $
00006  *
00007  * Copyright (C) 1997-2011 Todd Veldhuizen <tveldhui@acm.org>
00008  *
00009  * This file is a part of Blitz.
00010  *
00011  * Blitz is free software: you can redistribute it and/or modify 
00012  * it under the terms of the GNU Lesser General Public License
00013  * as published by the Free Software Foundation, either version 3
00014  * of the License, or (at your option) any later version.
00015  *
00016  * Blitz is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU Lesser General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU Lesser General Public 
00022  * License along with Blitz.  If not, see <http://www.gnu.org/licenses/>.
00023  * 
00024  * Suggestions:          blitz-devel@lists.sourceforge.net
00025  * Bugs:                 blitz-support@lists.sourceforge.net    
00026  *
00027  * For more information, please see the Blitz++ Home Page:
00028  *    https://sourceforge.net/projects/blitz/
00029  *
00030  ***************************************************************************/
00031 
00032 #ifndef BZ_RANDOM_H
00033 #define BZ_RANDOM_H
00034 
00035 #ifndef BZ_BLITZ_H
00036  #include <blitz/blitz.h>
00037 #endif
00038 
00039 BZ_NAMESPACE(blitz)
00040 
00041 template<typename P_distribution>
00042 class Random {
00043 
00044 public:
00045     typedef P_distribution T_distribution;
00046     typedef _bz_typename T_distribution::T_numtype T_numtype;
00047 
00048     Random(double parm1=0.0, double parm2=1.0, double parm3=0.0)
00049         : generator_(parm1, parm2, parm3)
00050     { }
00051 
00052     void randomize()
00053     { generator_.randomize(); }
00054    
00055     T_numtype random()
00056     { return generator_.random(); }
00057 
00058     operator T_numtype()
00059     { return generator_.random(); }
00060 
00061 protected: 
00062     T_distribution generator_;
00063 };
00064 
00065 BZ_NAMESPACE_END
00066 
00067 #include <blitz/randref.h>
00068 
00069 #endif // BZ_RANDOM_H
00070 
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