BSD 4_3 development

[unix-history] / usr / src / usr.bin / efl / temp.c

#include "defs"

ptr gentemp(t)
ptr t;
{
register ptr oldp;
register ptr p;
register ptr q;
int ttype;
ptr ttypep, tdim;

/* search the temporary list for a matching type */

ttype = t->vtype;
ttypep = t->vtypep;
tdim = t->vdim;

for(oldp = &tempvarlist ; p = oldp->nextp ; oldp = p)
       if( (q = p->datap) && (q->vtype == ttype) &&
         (q->vtypep == ttypep) && eqdim(q->vdim,tdim) )
               {
               oldp->nextp = p->nextp;
               break;
               }

if(p == PNULL)
       {
       q = allexpblock();
       q->tag = TTEMP;
       q->subtype = t->subtype;
       q->vtype = ttype;
       q->vclass = t->vclass;
       q->vtypep = ( ttypep ? cpexpr(ttypep) : PNULL);
       q->vdim = tdim;
       mkftnp(q);      /* assign fortran types */

       p = mkchain(q, CHNULL);
       p->datap = q;
       }

p->nextp = thisexec->temps;
thisexec->temps = p;

return( cpexpr(q) );
/* need a copy of the block for the temporary list and another for use */
}


ptr gent(t,tp)  /* make a temporary of type t, typepointer tp */
int t;
ptr tp;
{
static struct varblock model;

model.vtype = t;
model.vtypep = tp;

return( gentemp(&model) );
}