pdscoin.h

/*
 * extras.h
 * 
 * Copyright 2011 Fernando Pujaico Rivera <fernando.pujaico.rivera@gmail.com>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 */

#ifndef __PDSCOIN_H__
#define __PDSCOIN_H__

#include <pds/pdsrv.h>
#include <pds/pdsra.h>
//#include <pds/pdsba.h>

#ifdef __cplusplus
extern "C" {
#endif 

#define PDS_MIN_COIN_PROB 1.0/PDS_RAND_MAX 


typedef struct 
{
        PdsCongruential *X1;
        PdsRvReal x;
        PdsRvReal p;
}PdsCoin;

PdsCoin *pds_coin_new(PdsRvReal p);

int pds_coin_init(PdsCoin *X, PdsRvReal x0);

int pds_coin_set_p(PdsCoin *X, PdsRvReal p);

int pds_coin_get_value(PdsCoin *X, PdsRvReal *x);

int pds_coin_get_bit(PdsCoin *X, PdsRvByte *x);

int pds_coin_get_last_value(PdsCoin *X, PdsRvReal *x);

int pds_coin_get_last_bit(PdsCoin *X, PdsRvByte *x);

int pds_coin_get_vector(PdsCoin *X, PdsVector *V);

void pds_coin_free(PdsCoin *X);

void pds_coin_destroy(PdsCoin **X);

#ifdef __cplusplus
}
#endif 

#endif /* __PDSCOIN_H__ */