int main(){
int i=3,j,k;
j = PRODUCT(i++);
printf("\nValue of i: %d",i);
k = PRODUCT(++i);
printf("\nValue of i: %d",i);
printf("\nValue of J: %d\n",j);
printf("\nValue of K: %d\n",k);
return 0;
}
/* set up facial plane */
static int setplane (face *f)
{
double ba [3], cb [3];
edge *e1, *e2;
e1 = f->e; e2 = e1->n;
SUB (e1->v[1], e1->v[0], ba);
SUB (e2->v[1], e2->v[0], cb);
PRODUCT (ba, cb, f->pla);
f->pla [3] = - DOT (e1->v[0], f->pla);
MAXABS (f->pla, ba [0]);
if (ba [0] == 0.0) return 0; /* degenerate case (colinear vertices) */
else return 1;
}
