hfree
void hfree(struct Hist *);
hp->Hnext = np->Hnext, hfree(np);
if ((hdr = hfree) == 0)
hfree = (struct blk *)hdr->rd;
hfree = h = (struct blk *)dcmalloc(HEADSZ);
if (hfree == 0) {
if ((hfree = h = (struct blk *)dcmalloc(HEADSZ)) == 0)
while (h < hfree + (HEADSZ/BLK))
return (hfree);
if ((hdr = hfree) == 0)
hfree = (struct blk *)hdr->rd;
p->rd = (char *)hfree;
hfree = p;
struct blk *hfree;
#define _hfree hfree