dif              754 src/bregex.c      { i=0;pold=p;q.old=r;psimp(VS Ceps 0);q.len=dif(r,q.old);	 /* store it */
dif              912 src/bregex.c   	       { skiptok(VSO);cachea=pvold;cachep=p;cacher=dif(r,rvold);
dif             1182 src/bregex.c        if(!(r=preg->re_compiled=s=reg_malloc((i=dif(r,&aleps))+	 /* allocate */
dif             1735 src/bregex.c   			t=dif(cstp,stp)+INCSTACK*SZ(evoi))))
dif             1838 src/bregex.c   #define cp_e(memb)	(d->memb=epso(d,dif(s->memb,s)))
dif             1858 src/bregex.c     if(!(d=dest->re_compiled=reg_malloc(dif(src->re_finpoint,s)+