Low level routine
fr - eng


overlapadr_c - overlap computational routine

Module

Parameters

File content


/* overlapdr_c subroutine
 * Orverlapping operation
 * for real value
 *
 * Copyright (C) 2007-2011 Alan Layec
 *
 * This file is part of modnumlib.
 *
 * modnumlib 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.
 *
 * modnumlib 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 modnumlib; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

/* REVISION HISTORY :
 * $Log$
 */

#include "modnum_lib.h"

/* overlapadr_c routine de calcul du mot "overlappé" partie réelle
 *
 * m1      : taille du vecteur d'entrée
 * n       : longeur du mot à conserver
 * nb_coef : taille du mot excédentaire
 * u_r     : vecteur d'entrée de taille m1 (m1>n)
 * z_r     : vecteur de sortie de taille nb_coef
 *
 */

void overlapadr_c(int *m1,int *n,int *nb_coef,double *u_r,double *z_r)
{
 /*déclaration*/
 int i;

 /*Ajoute les nz éléments précédents au début du vecteur y_r*/
 for(i=0;i<(*nb_coef);i++) u_r[i]=u_r[i]+z_r[i];

 /*Recopie les nz éxcédentaires de z_res_r dans z*/
 for(i=0;i<(*nb_coef);i++) z_r[i]=u_r[(*n)+i];

 return;
}

Authors

A. Layec