sprev
f = sprev(f);
f = sprev(f);
f = sprev(f);
f = sprev(f);
return (_set_current_field(f, sprev(C(f))));
return (_set_current_field(f, sprev(sfirst(f))));
f = f->sprev;
newhead = f->sprev = f->snext = f; /* initialize new list */
Smax(f, page) = p->sprev->index; /* set sorted max */
f->sprev = p->sprev;
f->snext->sprev = f;
f->sprev->snext = f;
struct fieldnode * sprev; /* sorted order pointer */
ptr->sprev = (cpqary3_cmdpvt_t *)NULL;
struct cpqary3_command_private *sprev; /* Retrieved Q. */