niinit.c

来自「ngspice又一个电子CAD仿真软件代码.功能更全」· C语言 代码 · 共 31 行

/**********
Copyright 1990 Regents of the University of California.  All rights reserved.
Author: 1985 Thomas L. Quarles
**********/
/*
 */
    /*
     * NIinit(nistruct,loadpkg)
     *
     *  Initialize the Numerical iteration package to perform Newton-Raphson
     *  iterations on a sparse matrix filled by the specified load package,
     */

#include "ngspice.h"
#include "cktdefs.h"
#include "sperror.h"
#include "smpdefs.h"
#include "niinit.h"


int
NIinit(CKTcircuit *ckt)
{
#ifdef SPARSE
/* a concession to Ken Kundert's sparse matrix package - SMP doesn't need this*/
    int Error;
#endif /* SPARSE */
    ckt->CKTniState = NIUNINITIALIZED;
    return(SMPnewMatrix( &(ckt->CKTmatrix) ) );
}