Low level routine
fr -
eng
comp_c - sign comparison computational routine
- n :
size of vectors
- amp :
output level (scalar)
- u :
input vector
- y :
output vector
/* comp_c subroutine
* sign comparison computation
*
* 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"
/* comp_c routine de calcul de comparaison de signe
* Entrées :
* n : taille des vecteurs
* amp : amplitude des sorties (scalaire)
* u : vecteur d'entrée
* Sorties :
* y : vecteur de sortie
*/
void comp_c(int *n,double *ampl,double *u,double *y)
{
int i;
for(i=0;i<(*n);i++)
{
if(u[i]>0) y[i]=(*ampl);
else y[i]=-(*ampl);
}
return;
}
/*
* compv_c routine de calcul de comparaison de signe
*
* Entrées :
* n : taille des vecteurs
* amp : amplitude des sorties (vecteur)
* u : vecteur d'entrée
* Sorties :
* y : vecteur de sortie
*/
void compv_c(int *n,double *ampl,double *u,double *y)
{
int i;
for(i=0;i<(*n);i++)
{
if(u[i]>=0) y[i]=ampl[i];
else y[i]=-ampl[i];
}
return;
}
A. Layec