Added new files to the brew, mainly distance and new-op-interface related
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jmerelo
parent
472898871c
commit
7db1492943
40 changed files with 2490 additions and 992 deletions
228
eo/src/eoRnd.h
228
eo/src/eoRnd.h
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@ -1,114 +1,114 @@
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// eoRnd.h
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// (c) GeNeura Team, 1998
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/*
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; 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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Contact: todos@geneura.ugr.es, http://geneura.ugr.es
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*/
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//-----------------------------------------------------------------------------
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#ifndef _EORND_H
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#define _EORND_H
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//-----------------------------------------------------------------------------
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#include <eoObject.h>
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//-----------------------------------------------------------------------------
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// Class eoRnd
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//-----------------------------------------------------------------------------
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#include <stdlib.h> // srand
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#include <time.h> // time
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#include <stdexcept> // runtime_error
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//-----------------------------------------------------------------------------
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#include <eoPersistent.h>
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//-----------------------------------------------------------------------------
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/**
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* Base class for a family of random number generators. Generates numbers
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* according to the parameters given in the constructor. Uses the machine's
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* own random number generators. Which is not too good, after all.
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*/
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template<class T>
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class eoRnd: public eoObject, public eoPersistent
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{
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public:
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/// default constructor
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eoRnd(unsigned _seed = 0) {
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if ( !started ) {
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srand(_seed?_seed:time(0));
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started = true;
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}
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}
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/// Copy cotor
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eoRnd(const eoRnd& _r ) {srand(time(0));};
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/** Main function: random generators act as functors, that return random numbers.
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It´s non-const because it might modify a seed
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@return return a random number
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*/
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virtual T operator()() = 0;
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/** Return the class id.
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@return the class name as a string
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*/
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virtual string className() const { return "eoRandom"; };
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/**
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* Read object.
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* @param is A istream.
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* @throw runtime_exception If a valid object can't be read.
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*/
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virtual void readFrom(istream& _is);
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/**
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* print object. Prints just the ID, since the seed is not accesible.
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* @param is A ostream.
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*/
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void printOn(ostream& _os) const { _os << endl; };
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private:
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/// true if the RNG has been started already. If it starts every time, means trouble.
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static bool started;
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};
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template<class T> bool eoRnd<T>::started = false;
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//--------------------------------------------------------------------------
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/**
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* Read object.
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* @param is A istream.
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* @throw runtime_exception If a valid object can't be read.
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*/
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template<class T>
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void eoRnd<T>::readFrom(istream& _is) {
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if (!_is)
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throw runtime_error("Problems reading from stream in eoRnd");
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long seed;
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_is >> seed;
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srand(seed);
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}
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#endif
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/* -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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-----------------------------------------------------------------------------
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eoRnd.h
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(c) GeNeura Team, 1998
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; 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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Contact: todos@geneura.ugr.es, http://geneura.ugr.es
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*/
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//-----------------------------------------------------------------------------
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#ifndef _EORND_H
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#define _EORND_H
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//-----------------------------------------------------------------------------
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#include <eoObject.h>
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//-----------------------------------------------------------------------------
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// Class eoRnd
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//-----------------------------------------------------------------------------
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#include <stdlib.h> // srand
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#include <time.h> // time
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#include <stdexcept> // runtime_error
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//-----------------------------------------------------------------------------
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#include <eoPersistent.h>
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//-----------------------------------------------------------------------------
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/**
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* Base class for a family of random number generators. Generates numbers
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* according to the parameters given in the constructor. Uses the machine's
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* own random number generators. Which is not too good, after all.
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*/
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template<class T>
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class eoRnd: public eoObject, public eoPersistent
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{
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public:
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/// default constructor
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eoRnd(unsigned _seed = 0) {
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if ( !started ) {
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srand(_seed?_seed:time(0));
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started = true;
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}
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}
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/// Copy cotor
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eoRnd(const eoRnd& _r ) {srand(time(0));};
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/** Main function: random generators act as functors, that return random numbers.
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It´s non-const because it might modify a seed
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@return return a random number
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*/
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virtual T operator()() = 0;
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/** Return the class id.
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@return the class name as a string
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*/
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virtual string className() const { return "eoRandom"; };
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/**
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* Read object.
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* @param is A istream.
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* @throw runtime_exception If a valid object can't be read.
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*/
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virtual void readFrom(istream& _is);
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/**
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* print object. Prints just the ID, since the seed is not accesible.
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* @param is A ostream.
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*/
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void printOn(ostream& _os) const { _os << endl; };
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private:
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/// true if the RNG has been started already. If it starts every time, means trouble.
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static bool started;
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};
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template<class T> bool eoRnd<T>::started = false;
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//--------------------------------------------------------------------------
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/**
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* Read object.
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* @param is A istream.
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* @throw runtime_exception If a valid object can't be read.
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*/
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template<class T>
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void eoRnd<T>::readFrom(istream& _is) {
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if (!_is)
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throw runtime_error("Problems reading from stream in eoRnd");
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long seed;
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_is >> seed;
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srand(seed);
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}
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#endif
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