plink
struct plink *fplp; /* Follow-set forward propagation links */
struct plink *bplp; /* Follow-set backwards propagation links */
struct plink *next; /* The next propagate link */
static struct plink *plink_freelist = 0;
struct plink *Plink_new(){
struct plink *new;
plink_freelist = (struct plink *)malloc( sizeof(struct plink)*amt );
struct plink **plpp;
struct plink *new;
struct plink **to;
struct plink *from;
struct plink *nextpl;
struct plink *plp;
struct plink *nextpl;
struct plink *plp;
struct plink *plp;
struct plink *plp;
struct plink *Plink_new(/* void */);
plink next;