/* $OpenXM: OpenXM_contrib2/asir2018/builtin/user.c,v 1.1 2018/09/19 05:45:06 noro Exp $ */
/* a sample file for adding builtin functions */
#include "ca.h"
#include "parse.h"
void Ppartial_derivative();
void partial_derivative(VL vl,P p,V v,P *r);
void Pzadd(),Pzsub(),Pzmul();
void Pcomp_f();
struct ftab user_tab[] = {
/*
{"partial_derivative",Ppartial_derivative,2},
*/
{"comp_f",Pcomp_f,2},
{0,0,0},
};
/* compare two [[F,M],...] */
void Pcomp_f(NODE arg,Z *rp)
{
NODE l1,l2,e1,e2;
int m1,m2,r;
l1 = BDY((LIST)ARG0(arg));
l2 = BDY((LIST)ARG1(arg));
for ( ; l1 && l2; l1 = NEXT(l1), l2 = NEXT(l2) ) {
e1 = BDY((LIST)BDY(l1));
e2 = BDY((LIST)BDY(l2));
r = compp(CO,(P)ARG0(e1),(P)ARG0(e2));
if ( r ) { STOQ(r,*rp); return; }
m1 = QTOS((Q)ARG1(e1));
m2 = QTOS((Q)ARG1(e2));
r = m1>m2?1:(m1<m2?-1:0);
if ( r ) { STOQ(r,*rp); return; }
}
r = l1?1:(l2?-1:0);
STOQ(r,*rp);
}
/*
void Ppartial_derivative(NODE arg,P *rp)
{
asir_assert(ARG0(arg),O_P,"partial_derivative");
asir_assert(ARG1(arg),O_P,"partial_derivative");
partial_derivative(CO,(P)ARG0(arg),((P)ARG1(arg))->v,rp);
}
void partial_derivative(VL vl,P p,V v,P *r)
{
P t;
DCP dc,dcr,dcr0;
if ( !p || NUM(p) ) *r = 0;
else if ( v == p->v ) {
for ( dc = p->dc, dcr0 = 0; dc && dc->d; dc = dc->next ) {
mulp(vl,dc->c,(P)dc->d,&t);
if ( t ) {
NEXTDC(dcr0,dcr); subq(dc->d,ONE,&dcr->d); dcr->c = t;
}
}
if ( !dcr0 ) *r = 0;
else { dcr->next = 0; MKP(v,dcr0,*r); }
} else {
for ( dc = p->dc, dcr0 = 0; dc; dc = dc->next ) {
partial_derivative(vl,dc->c,v,&t);
if ( t ) { NEXTDC(dcr0,dcr); dcr->d = dc->d; dcr->c = t; }
}
if ( !dcr0 ) *r = 0;
else { dcr->next = 0; MKP(p->v,dcr0,*r); }
}
}
*/