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c Scicos
c
c Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
c
c This program is free software; you can redistribute it and/or modify
c it under the terms of the GNU General Public License as published by
c the Free Software Foundation; either version 2 of the License, or
c (at your option) any later version.
c
c This program is distributed in the hope that it will be useful,
c but WITHOUT ANY WARRANTY; without even the implied warranty of
c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
c GNU General Public License for more details.
c
c You should have received a copy of the GNU General Public License
c along with this program; if not, write to the Free Software
c Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
c
c See the file ./license.txt
c
subroutine ftree4(vec,nb,nd,nnd,typr,outoin,outoinptr,
c Copyright INRIA
$ r1,r2,nr)
c make sure nb > 0
integer vec(*),nb,nd(*),outoin(*),outoinptr(*)
integer r1(*),r2(*),fini,typr(*)
c
nr=0
do 150 j=1,nb-1
fini=1
do 100 i=1,nb
if(vec(i).gt.-1) then
if(outoinptr(i+1)-outoinptr(i).ne.0) then
do 60 k=outoinptr(i),outoinptr(i+1)-1
ii=outoin(k)
if(typr(ii).eq.1) then
nprt=outoin(k+outoinptr(nb+1)-1)
if(nd(nprt+1+(ii-1)*nnd).eq.0) then
nr=nr+1
r1(nr)=ii
r2(nr)=nprt
fini=0
vec(ii)=0
nd(nprt+1+(ii-1)*nnd)=1
endif
endif
60 continue
endif
endif
100 continue
if(fini.eq.1) goto 200
150 continue
200 continue
return
end
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