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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2002-03-21 16:57:43 UTC
  • Revision ID: james.westby@ubuntu.com-20020321165743-e9mv12c1tb1plztg
Tags: upstream-2.6
Import upstream version 2.6

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routines/metanet/cfc.f
 
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      subroutine cfc(i0,inf,lp1,ls1,m,n,nc,nfcomp,
 
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     &     nn,num,pw,pile)
 
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      implicit integer (a-z)
 
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      dimension lp1(*),ls1(m),pw(n),nn(n),nfcomp(n),
 
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     &     inf(n),pile(n),num(n)
 
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      pw(i0)=i0
 
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      k=1
 
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      num(i0)=k
 
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      inf(i0)=k
 
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      i=i0
 
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      np=1
 
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      pile(np)=i0
 
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 100  if(nn(i).eq.0) goto 200
 
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      ll=lp1(i)+nn(i)-1
 
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      j=ls1(ll)
 
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      nn(i)=nn(i)-1
 
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      if(pw(j).lt.0) goto 130
 
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      if(pw(j).gt.0) goto 120
 
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      pw(j)=i
 
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      k=k+1
 
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      num(j)=k
 
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      np=np+1
 
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      pile(np)=j
 
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      inf(j)=num(j)
 
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      i=j
 
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      goto 100
 
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 120  inf(i)=min0(num(j),inf(i))
 
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      goto 100
 
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 130  if(nfcomp(j).ne.0) goto 140
 
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      inf(i)=min0(inf(i),inf(j))
 
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 140  goto 100
 
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 200  if(inf(i).ne.num(i)) goto 220
 
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 205  if(pile(np).eq.i) goto 210
 
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      j=pile(np)
 
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      nfcomp(j)=nc
 
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      np=np-1
 
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      goto 205
 
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 210  nfcomp(i)=nc
 
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      np=np-1
 
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      nc=nc+1
 
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      if(i.eq.i0) goto 300
 
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 220  j=pw(i)
 
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      pw(i)=-pw(i)
 
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      inf(j)=min0(inf(j),inf(i))
 
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      i=j
 
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      goto 100
 
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 300  pw(i0)=-pw(i0)
 
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      end