135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2007, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//paragraph [1] Title: [{\Large \bf ] [}]
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//[->] [\ensuremath{\rightarrow}]
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[1] Secondo GSLAlgebra
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March 22, 2007 C. Duentgen created the algebra
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\begin{center}
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\footnotesize
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\tableofcontents
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\end{center}
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1 Overview
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This algebra provides functionality of the GSL (Gnu Scinetific Library) to the
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Secondo user.
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2 Includes
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*/
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#ifndef GSL_ALGEBRA_H
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#define GSL_ALGEBRA_H
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#include "Algebra.h"
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#include "NestedList.h"
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#include "QueryProcessor.h"
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#include "StandardTypes.h"
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#include <iostream>
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#include <string>
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#include <sstream>
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#include <cstdlib>
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#include <unistd.h>
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#include <errno.h>
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#include <NList.h>
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#ifndef SECONDO_WIN32
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#define HAVE_INLINE
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#endif
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#include <gsl/gsl_rng.h>
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#include <gsl/gsl_randist.h>
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extern NestedList* nl;
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extern QueryProcessor *qp;
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extern AlgebraManager *am;
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/*
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3. C++ Data Types
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3.1 Type ~randomgen~
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Type ~randomgen~ is a random number generator. As an object, it also stores
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the type of generation method to apply, and a random seed.
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It could be expanded to become of kind SIMPLE or DATA later. The ~defined~ flag
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was included to this goal.
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*/
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class GslRandomgen //: public Attribute
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{
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public:
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GslRandomgen();
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GslRandomgen( const bool def );
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GslRandomgen( const int typeNo, const unsigned long seed );
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GslRandomgen( const GslRandomgen& other );
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GslRandomgen& operator= ( const GslRandomgen& other );
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~GslRandomgen();
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gsl_rng* GetGenerator();
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inline void SetDefined( const bool def );
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inline bool IsDefined() const;
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inline void SetSeed( const unsigned long seed );
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inline unsigned long GetSeed();
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inline int GetType();
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inline size_t Sizeof() const;
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double NextReal();
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// inline unsigned long int NextInt();
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unsigned long int NextInt();
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inline unsigned long int MinRand() const;
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inline unsigned long int MaxRand() const;
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inline double NextRealPos();
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inline unsigned long int NextIntN(const unsigned long int n);
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static long rngType_getNoOfGenerators();
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static unsigned long rngType_getMinRand(const int index);
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static unsigned long rngType_getMaxRand(const int index);
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static std::string rngType_getName(const int index);
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private:
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bool defined;
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unsigned long mySeed;
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int myType;
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gsl_rng *me;
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static void InitializeTables();
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static int gslalg_randomgeneratorTableSize;
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static const gsl_rng_type* GetRngType(int index);
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static bool initialized;
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static int gsl_rng_defaultIndex;
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static const gsl_rng_type **gslalg_randomgeneratorTable;
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};
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#endif
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