next_request = ret + size;
IF_DEBUG(gc,fprintf(stderr,"Allocated %d megablock(s) at %p\n",n,ret));
// fill in the table
for (i = 0; i < n; i++) {
next_request = ret + size;
IF_DEBUG(gc,fprintf(stderr,"Allocated %d megablock(s) at %p\n",n,ret));
// fill in the table
for (i = 0; i < n; i++) {