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subroutine i_l_i
c left division
include '../stack.h'
integer is1
external memused
integer memused
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
m2=istk(il2+1)
n2=istk(il2+2)
it2=istk(il2+3)
l2=il2+4
mn2=m2*n2
top=top-1
c
il1=iadr(lstk(top))
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
n1=istk(il1+2)
it1=istk(il1+3)
l1=il1+4
mn1=m1*n1
if(it1.ne.it2) then
top=top+1
fin=-fin
return
endif
if (m1*n1 .ne. 1) then
if(m2.lt.0) then
call error(14)
return
endif
top=top+1
fin=-fin
return
else
c . cst \ vector
if(m1.lt.0.and.mn2.ne.1) then
call error(14)
return
endif
istk(il1+1)=m2
istk(il1+2)=n2
istk(il1+3)=it1
c
call gencopy(it1,1,istk(l1),1,is1,1)
call gencopy(it1,mn2,istk(l2),1,istk(l1),1)
call genrdiv(it1,istk(l1),1,is1,0,istk(l1),1,mn2,ierr)
lstk(top+1)=sadr(l1+memused(it1,mn2))
if(ierr.ne.0) then
call error(27)
return
endif
endif
return
end
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