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|
subroutine strops
c ====================================================================
c
c operations sur les matrices de chaines de caracteres
c
c ====================================================================
c
c Copyright INRIA
include '../stack.h'
common /mtlbc/ mmode
c
integer plus,quote,equal,less,great,insert,extrac
integer top0,iadr,sadr,op,vol,volr,rhs1
logical isany
c
data plus/45/,quote/53/
data equal/50/,less/59/,great/60/,insert/2/,extrac/3/
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
op=fin
c
if (ddt .eq. 4) then
write(buf(1:4),'(i4)') fin
call basout(io,wte,' strops '//buf(1:4))
endif
c
fun=0
c
top0=top
c
lw=lstk(top+1)
rhs1=rhs
if(op.eq.extrac) goto 130
if(op.eq.insert) goto 120
c
if(rhs.eq.1) goto 05
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)
mn2=m2*n2
id2=il2+4
l2r=id2+mn2+1
l3r=lw
c
top = top-1
05 il1=iadr(lstk(top))
ilrs=il1
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
n1=istk(il1+2)
it1=istk(il1+3)
mn1 = m1*n1
id1=il1+4
l1r=id1+mn1+1
vol=istk(id1+mn1)-1
c
goto (60,120,130,65) op
if (rhs .eq. 1.and.op.eq.quote) goto 110
if (op .eq. plus ) go to 20
if(op.eq.equal.or.op.eq.less+great) goto 180
c
c operations non implantees
10 top=top0
rhs=rhs1
fin=-fin
return
c
c addition
c
20 continue
if(m1*n1.eq.0) then
c . []+b
vol=5+mn2+istk(id2+mn2)-1
call icopy(vol,istk(il2),1,istk(il1),1)
lstk(top+1)=sadr(il1+vol)
return
elseif(m2*n2.eq.0) then
c . a+[]
return
elseif(m1.ne.m2.or.n1.ne.n2) then
top=top0
rhs=rhs1
fin=-fin
return
endif
if(istk(il1).ne.istk(il2)) goto 10
err=lw+sadr(istk(id1+mn1)+istk(id2+mn2))-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
c
lr=iadr(lw)
l=lr
i1=1
do 11 i=1,mn1
la=istk(id1+i)-i1
lb=istk(id2+i)-istk(id2+i-1)
i1=istk(id1+i)
istk(id1+i)=istk(id1+i-1)+la+lb
call icopy(la,istk(l1r),1,istk(l),1)
l1r=l1r+la
l=l+la
call icopy(lb,istk(l2r),1,istk(l),1)
l2r=l2r+lb
l=l+lb
11 continue
call icopy(l-lr,istk(lr),1,istk(il1+5+mn1),1)
lstk(top+1)=sadr(il1+5+mn1+l-lr)
goto 999
c
c concatenation [a, b]
c
60 continue
if(m1.lt.0.or.m2.lt.0) then
call error(14)
return
endif
if(m2.eq.0) then
return
elseif(m1.eq.0)then
call unsfdcopy(lstk(top+2)-lstk(top+1),stk(lstk(top+1)),1,
& stk(lstk(top)),1)
lstk(top+1)=lstk(top)+lstk(top+2)-lstk(top+1)
return
elseif(m1.ne.m2) then
call error(5)
return
endif
if(istk(il1).ne.istk(il2)) goto 10
c
id3=iadr(lw)
l3r=id3+mn1+mn2+1
vol=istk(id1+mn1)+istk(id2+mn2)-2
err=sadr(l3r+vol)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call impcnc(istk(l1r),istk(id1),m1,istk(l2r),istk(id2),m1,
& istk(l3r),istk(id3),m1,n1,n2,1)
c
istk(il1)=10
istk(il1+1)=m1
istk(il1+2)=n1+n2
istk(il1+3)=it1
call icopy(mn1+mn2+vol+1,istk(id3),1,istk(il1+4),1)
lstk(top+1)=sadr(il1+5+mn1+mn2+vol)
goto 999
c
c concatenation [a;b]
65 continue
if(n1.lt.0.or.n2.lt.0) then
call error(14)
return
endif
if(n2.eq.0) then
return
elseif(n1.eq.0)then
call unsfdcopy(lstk(top+2)-lstk(top+1),stk(lstk(top+1)),1,
& stk(lstk(top)),1)
lstk(top+1)=lstk(top)+lstk(top+2)-lstk(top+1)
return
elseif(n1.ne.n2) then
call error(6)
return
endif
if(istk(il1).ne.istk(il2)) goto 10
c
id3=iadr(lw)
l3r=id3+mn1+mn2+1
vol=istk(id1+mn1)+istk(id2+mn2)-2
err=sadr(l3r+vol)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call impcnc(istk(l1r),istk(id1),m1,istk(l2r),istk(id2),m2,
& istk(l3r),istk(id3),m1,m2,n2,-1)
c
istk(il1)=10
istk(il1+1)=m1+m2
istk(il1+2)=n1
istk(il1+3)=it1
call icopy(mn1+mn2+vol+1,istk(id3),1,istk(il1+4),1)
lstk(top+1)=sadr(il1+5+mn1+mn2+vol)
goto 999
c
c transposition
c
110 continue
id2=iadr(lw)
l2r=id2+mn1+1
err=sadr(l2r+vol)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call imptra(istk(l1r),istk(id1),m1,istk(l2r),istk(id2),m1,n1)
istk(il1+1)=n1
istk(il1+2)=m1
call icopy(mn1+1+vol,istk(id2),1,istk(id1),1)
goto 999
c
c insertion
c
120 continue
if(rhs.gt.4) then
top=top0
fin=-fin
return
endif
if(rhs.eq.4) goto 125
c arg3(arg1)=arg2
c
c get arg3
il3=iadr(lstk(top))
if(istk(il3).lt.0) il3=iadr(istk(il3+1))
if(istk(il3).ne.10) then
if(istk(il3).ne.1.or.istk(il3+1).ne.0) then
top=top0
fin=-fin
return
endif
endif
m3=istk(il3+1)
n3=istk(il3+2)
mn3=m3*n3
id3=il3+4
l3r=id3+mn3+1
c get arg2
top=top-1
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
if(istk(il2).ne.10) then
if(istk(il2).eq.1) then
if(istk(il2+1)*istk(il2+2).eq.0) goto 121
endif
top=top0
fin=-fin
return
endif
121 m2=istk(il2+1)
n2=istk(il2+2)
mn2=m2*n2
id2=il2+4
l2r=id2+mn2+1
c get arg1
top=top-1
il1=iadr(lstk(top))
ilrs=il1
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
if (istk(il1).eq.10.or.istk(il1).eq.15) then
top=top0
fin=-fin
return
endif
m1=istk(il1+1)
n1=istk(il1+2)
c
if (m2.eq.0) then
c . arg3(arg1)=[]
if(m1.eq.-1) then
c . arg3(:)=[] -->[]
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
lstk(top+1)=sadr(ilrs+4)+1
goto 999
elseif(m1.eq.0) then
c . arg3([])=[] --> arg3
istk(ilrs)=10
istk(ilrs+1)=m3
istk(ilrs+2)=n3
istk(ilrs+3)=0
volr=istk(id3+mn3)-1
call icopy(mn3+1+volr,istk(id3),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn3+volr)
goto 999
else
c . arg3(arg1)=[]
if(istk(il1).eq.4.and.m3.eq.m1.and.n3.eq.n1) then
if(.not.isany(il1)) then
c . arg3([])=[] --> arg3
istk(ilrs)=10
istk(ilrs+1)=m3
istk(ilrs+2)=n3
istk(ilrs+3)=0
volr=istk(id3+mn3)-1
call icopy(mn3+1+volr,istk(id3),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn3+volr)
goto 999
endif
endif
c . arg3(arg1)=[] --> arg3(compl(arg1))
call indxgc(il1,mn3,ilr,mi,mx,lw)
if(err.gt.0) return
l2r=l3r
n2=n3
m2=m3
mn2=m2*n2
id2=id3
ili=ilr
c . call extraction
goto 131
endif
elseif(m2.lt.0.or.m3.lt.0) then
c . arg3=eye,arg2=eye
call error(14)
return
elseif(m1.lt.0) then
c . arg3(:)=arg2
if(mn2.ne.mn3) then
if(mn2.eq.1) goto 124
call error(15)
return
endif
c . reshape arg2 according to arg3
istk(ilrs)=10
istk(ilrs+1)=m3
istk(ilrs+2)=n3
istk(ilrs+3)=0
volr=istk(id2+mn2)-1
call icopy(mn3+1+volr,istk(id2),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn3+volr)
goto 999
endif
124 call indxg(il1,mn3,ili,mi,mxi,lw,1)
if(err.gt.0) return
if(mi.eq.0) then
c . arg3([])=arg2
if(mn2.eq.1) then
c . arg3([])=c --> arg3
if(mn3.eq.0) then
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
lstk(top+1)=sadr(ilrs+4)
else
istk(ilrs)=10
istk(ilrs+1)=m3
istk(ilrs+2)=n3
istk(ilrs+3)=0
volr=istk(id3+mn3)-1
call icopy(mn3+1+volr,istk(id3),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn3+volr)
endif
goto 999
else
call error(15)
return
endif
endif
if(mi.ne.mn2.and.mn2.gt.1) then
call error(15)
return
endif
c
if (n3.gt.1.and.m3.gt.1) then
c . arg3 is not a vector
if(n2.gt.1.and.m2.gt.1) then
call error(15)
return
endif
if(mxi.gt.m3*n3) then
call error(21)
return
endif
mr=m3
nr=n3
elseif (n3.le.1.and.n2.le.1) then
c . arg3 and arg2 are column vectors
mr=max(m3,mxi)
nr=max(n3,1)
elseif (m3.le.1.and.m2.le.1) then
c . row vectors
nr=max(n3,mxi)
mr=max(m3,1)
else
c . arg3 and arg2 dimensions dont agree
call error(15)
return
endif
c
mnr=mr*nr
c set result pointers
idr=iadr(lw)
lr=idr+mr*nr+1
lw=sadr(lr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call mpinsp(istk(id3),m3*n3,1,istk(ili),mi,1,1,istk(id2),m2*n2,1
$ ,istk(idr),mnr,1,err)
if(err.gt.0) then
call error(15)
return
endif
volr=istk(idr)
c set result coefficients
lw=sadr(lr+volr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
c
call impins(istk(l3r),istk(id3),m3*n3,1,istk(l2r),istk(id2),
$ m2*n2,1,istk(lr),istk(idr),mnr,1)
c set output variable
ilrs=iadr(lstk(top))
istk(ilrs)=10
if(mmode.eq.1.and.nr.eq.1.and.m3.eq.0) then
istk(ilrs+1)=nr
istk(ilrs+2)=mr
else
istk(ilrs+1)=mr
istk(ilrs+2)=nr
endif
istk(ilrs+3)=0
call icopy(mnr+1+volr,istk(idr),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mnr+volr)
goto 999
c
125 continue
c arg4(arg1,arg2)=arg3
c get arg4
il4=iadr(lstk(top))
if(istk(il4).lt.0) il4=iadr(istk(il4+1))
if(istk(il4).ne.10) then
if(istk(il4).ne.1.or.istk(il4+1).ne.0) then
top=top0
fin=-fin
return
endif
endif
m4=istk(il4+1)
n4=istk(il4+2)
mn4=m4*n4
id4=il4+4
l4r=id4+mn4+1
top=top-1
c get arg3
il3=iadr(lstk(top))
if(istk(il3).lt.0) il3=iadr(istk(il3+1))
if(istk(il3).ne.10) then
if(istk(il3).eq.1) then
if(istk(il3+1)*istk(il3+2).eq.0) goto 126
endif
top=top0
fin=-fin
return
endif
126 m3=istk(il3+1)
n3=istk(il3+2)
mn3=m3*n3
id3=il3+4
l3r=id3+mn3+1
c get arg2
top=top-1
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
m2=istk(il2+1)
c get arg1
top=top-1
il1=iadr(lstk(top))
ilrs=il1
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
if (m3.eq.0) then
c . arg4(arg1,arg2)=[]
if(m1.eq.-1.and.m2.eq.-1) then
c . arg4(:,:)=[] -->[]
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
lstk(top+1)=sadr(ilrs+4)+1
goto 999
elseif(m1.eq.0.or.m2.eq.0) then
c . arg4([],arg2)=[], arg4(arg1,[])=[] --> arg4
istk(ilrs)=10
istk(ilrs+1)=m4
istk(ilrs+2)=n4
istk(ilrs+3)=0
volr=istk(id4+mn4)-1
call icopy(mn4+1+volr,istk(id4),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn4+volr)
goto 999
elseif(m2.eq.-1) then
c . arg4(arg1,:)=[] --> arg4(compl(arg1),:)
call indxgc(il1,m4,ili,mi,mxi,lw)
if(err.gt.0) return
call indxg(il2,n4,ilj,nj,mxj,lw,1)
if(err.gt.0) return
l3r=l4r
n3=n4
m3=m4
mn3=m3*n3
id3=id4
c . call extraction
goto 133
elseif(m1.eq.-1) then
c . arg4(:,arg2)=[] --> arg4(:,compl(arg2))
call indxgc(il2,n4,ilj,nj,mxj,lw)
if(err.gt.0) return
call indxg(il1,m4,ili,mi,mxi,lw,1)
if(err.gt.0) return
l3r=l4r
n3=n4
m3=m4
mn3=m3*n3
id3=id4
c . call extraction
goto 133
else
c . arg4(arg1,arg2)=[]
lw1=lw
call indxgc(il2,n4,ilj,nj,mxj,lw)
if(err.gt.0) return
if(nj.eq.0) then
c . arg4(arg1,1:n4)=[]
call indxgc(il1,m4,ili,mi,mxi,lw)
lw2=lw
if(err.gt.0) return
c . arg2=1:n4
if(mi.eq.0) then
c . arg4(1:m4,1:n4)=[]
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
lstk(top+1)=sadr(ilrs+4)+1
goto 999
else
c . arg4(arg1,1:n4)=[]
c . replace arg2 by ":"
il2=iadr(lw2)
istk(il2)=1
istk(il2+1)=-1
istk(il2+2)=-1
istk(il2+3)=0
c .
lw=lw2+2
call indxg(il2,n4,ilj,nj,mxj,lw,1)
if(err.gt.0) return
l3r=l4r
n3=n4
m3=m4
mn3=m3*n3
id3=id4
c . call extraction
goto 133
endif
else
c lw=lw1
call indxgc(il1,m4,ili,mi,mxi,lw)
if(err.gt.0) return
if(mi.eq.0) then
c . arg4(1:m4,arg2)=[]
call indxg(il1,m4,ili,mi,mxi,lw,1)
if(err.gt.0) return
l3r=l4r
n3=n4
m3=m4
mn3=m3*n3
id3=id4
c . call extraction
goto 133
else
call error(15)
return
endif
endif
endif
elseif(m3.lt.0.or.m4.lt.0) then
c . arg3=eye , arg4=eye
call error(14)
return
elseif(m1.eq.-1.and.m2.eq.-1) then
c . arg4(:,:)=arg3
if(mn3.ne.mn4) then
if(mn3.eq.1) goto 127
call error(15)
return
endif
c . reshape arg3 according to arg4
istk(ilrs)=10
istk(ilrs+1)=m4
istk(ilrs+2)=n4
istk(ilrs+3)=0
volr=istk(id3+mn3)-1
call icopy(mn3+volr,istk(id3),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn3+volr)
goto 999
endif
127 call indxg(il1,m4,ili,mi,mxi,lw,1)
if(err.gt.0) return
call indxg(il2,n4,ilj,mj,mxj,lw,1)
if(err.gt.0) return
if(mi.ne.m3.or.mj.ne.n3) then
if(m3*n3.eq.1) then
if(mi.eq.0.or.mj.eq.0) then
istk(ilrs)=10
istk(ilrs+1)=m4
istk(ilrs+2)=n4
istk(ilrs+3)=0
volr=istk(id4+mn4)-1
call icopy(mn4+volr,istk(id4),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn4+volr)
goto 999
endif
else
c . sizes of arg1 or arg2 dont agree with arg3 sizes
call error(15)
return
endif
if(mi.eq.0.or.mj.eq.0) then
call error(15)
return
endif
endif
mr=max(m4,mxi)
nr=max(n4,mxj)
c
mnr=mr*nr
c set result pointers
idr=iadr(lw)
lr=idr+mr*nr+1
lw=sadr(lr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call mpinsp(istk(id4),m4,n4,istk(ili),mi,istk(ilj),mj,istk(id3)
$ ,m3,n3,istk(idr),mr,nr,err)
if(err.gt.0) then
call error(15)
return
endif
volr=istk(idr)
c set result coefficients
lw=sadr(lr+volr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
c
call impins(istk(l4r),istk(id4),m4,n4,istk(l3r),istk(id3),m3,n3
$ ,istk(lr),istk(idr),mr,nr)
c set output variable
ilrs=iadr(lstk(top))
istk(ilrs)=10
istk(ilrs+1)=mr
istk(ilrs+2)=nr
istk(ilrs+3)=0
call icopy(mnr+1+volr,istk(idr),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mnr+volr)
goto 999
c
c extraction
c
130 continue
if(rhs.lt.2) then
call error(227)
return
endif
if(rhs.gt.2) goto 132
c arg2(arg1)
c get arg2
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
m2=istk(il2+1)
n2=istk(il2+2)
mn2=m2*n2
id2=il2+4
l2r=id2+mn2+1
c get arg1
top=top-1
il1=iadr(lstk(top))
ilrs=il1
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
n1=istk(il1+2)
if(mn2.eq.0) then
c . arg2=[]
ilrs=iadr(lstk(top))
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
l1=sadr(ilrs+4)
lstk(top+1)=l1+1
goto 999
elseif(m2.lt.0) then
c . arg2=eye
call error(14)
return
elseif(m1.lt.0) then
c . arg2(:), just reshape to column vector
ilrs=iadr(lstk(top))
istk(ilrs)=10
istk(ilrs+1)=mn2
istk(ilrs+2)=1
istk(ilrs+3)=istk(il2+3)
volr=istk(id2+mn2)-1
call icopy(mn2+1+volr,istk(id2),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mn2+volr)
goto 999
endif
c check and convert indices variable
call indxg(il1,mn2,ili,mi,mx,lw,1)
if(err.gt.0) return
if(mx.gt.mn2) then
call error(21)
return
endif
131 if(mi.eq.0) then
c arg2([])
ilrs=iadr(lstk(top))
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
l1=sadr(ilrs+4)
lstk(top+1)=l1+1
goto 999
endif
c get memory for the result
idr=iadr(lw)
lr=idr+mi+1
lw=sadr(lr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
c set result pointers
if (m2 .gt. 1.or.m1.lt.0) then
call impext(istk(l2r),istk(id2),m2,n2,istk(ili),mi,1,1,istk(lr)
$ ,istk(idr),0,err)
else
call impext(istk(l2r),istk(id2),m2,n2,1,1,istk(ili),mi,istk(lr)
$ ,istk(idr),0,err)
endif
if(err.gt.0) then
call error(21)
return
endif
c set result coefficients
volr=istk(idr+mi)-1
lw=sadr(lr+volr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
if (m2.eq.1.and.n2.eq.1.and.m1.gt.0) then
call impext(istk(l2r),istk(id2),m2,n2,istk(ili),mi,1,1,istk(lr)
$ ,istk(idr),1,err)
m = m1
n = min(n1,mi)
elseif (m2 .gt. 1.or.m1.lt.0) then
call impext(istk(l2r),istk(id2),m2,n2,istk(ili),mi,1,1,istk(lr)
$ ,istk(idr),1,err)
m = mi
n = 1
else
call impext(istk(l2r),istk(id2),m2,n2,1,1,istk(ili),mi,istk(lr)
$ ,istk(idr),1,err)
n = mi
m = 1
endif
c form resulting variable
ilrs=iadr(lstk(top))
istk(ilrs)=10
istk(ilrs+1)=m
istk(ilrs+2)=n
istk(ilrs+3)=0
volr=istk(idr+mi)-1
call icopy(mi+1+volr,istk(idr),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+m*n+volr)
go to 999
132 continue
c arg3(arg1,arg2)
if(rhs.gt.3) then
call error(36)
return
endif
c get arg3
il3=iadr(lstk(top))
if(istk(il3).lt.0) il3=iadr(istk(il3+1))
m3=istk(il3+1)
n3=istk(il3+2)
mn3=m3*n3
id3=il3+4
l3r=id3+mn3+1
c get arg2
top=top-1
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
m2=istk(il2+1)
c get arg1
top=top-1
il1=iadr(lstk(top))
ilrs=il1
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
l1=sadr(il1+4)
c
if(mn3.eq.0) then
c . arg3=[]
ilrs=iadr(lstk(top))
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
l1=sadr(ilrs+4)
lstk(top+1)=l1+1
goto 999
elseif(m3.lt.0) then
c .arg3=eye
call error(14)
return
endif
c check and convert indices variables
call indxg(il1,m3,ili,mi,mxi,lw,1)
if(err.gt.0) return
if(mxi.gt.m3) then
call error(21)
return
endif
call indxg(il2,n3,ilj,nj,mxj,lw,1)
if(err.gt.0) return
if(mxj.gt.n3) then
call error(21)
return
endif
c
c perform extraction
133 mnr=mi*nj
if(mnr.eq.0) then
c . arg1=[] or arg2=[]
ilrs=iadr(lstk(top))
istk(ilrs)=1
istk(ilrs+1)=0
istk(ilrs+2)=0
istk(ilrs+3)=0
lstk(top+1)=sadr(ilrs+4)+1
goto 999
endif
idr=iadr(lw)
lr=idr+mnr+1
lw=sadr(lr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
c set result pointers
call impext(istk(l3r),istk(id3),m3,n3,istk(ili),mi,istk(ilj),nj
$ ,istk(lr),istk(idr),0,err)
if(err.gt.0) then
call error(21)
return
endif
c set result coefficients
volr=istk(idr+mnr)-1
lw=sadr(lr+volr)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call impext(istk(l3r),istk(id3),m3,n3,istk(ili),mi,istk(ilj),nj
$ ,istk(lr),istk(idr),1,err)
c
ilrs=iadr(lstk(top))
istk(ilrs)=10
istk(ilrs+1)=mi
istk(ilrs+2)=nj
istk(ilrs+3)=0
call icopy(mnr+1+volr,istk(idr),1,istk(ilrs+4),1)
lstk(top+1)=sadr(ilrs+5+mnr+volr)
goto 999
c
c comparaisons
180 continue
itrue=1
if(op.eq.less+great) itrue=0
c comparaison des types
if(istk(il1).ne.istk(il2)) then
istk(il1)=4
istk(il1+1)=1
istk(il1+2)=1
istk(il1+3)=1-itrue
lstk(top+1)=sadr(il1+4)
return
endif
181 continue
c des dimensions
if(mn1.eq.1.and.mn2.gt.1) then
nn1=istk(il1+5)-1
l1r=iadr(lw)
err=sadr(l1r+nn1+2)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call icopy(nn1,istk(il1+6),1,istk(l1r),1)
id1=l1r+nn1
istk(id1)=1
istk(id1+1)=nn1+1
inc1=0
inc2=1
mn1=mn2
m1=m2
n1=n2
istk(il1+1)=m1
istk(il1+2)=n1
else if(mn2.eq.1.and.mn1.gt.1) then
nn2=istk(il2+5)-1
l2r=iadr(lw)
err=sadr(l2r+nn2+2)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call icopy(nn2,istk(il2+6),1,istk(l2r),1)
id2=l2r+nn2
istk(id2)=1
istk(id2+1)=nn2+1
inc1=1
inc2=0
mn2=mn1
m2=m1
n2=n1
else if(n1.ne.n2.or.m1.ne.m2) then
istk(il1)=4
istk(il1+1)=1
istk(il1+2)=1
istk(il1+3)=1-itrue
lstk(top+1)=sadr(il1+4)
return
else
inc1=1
inc2=1
l1=il1+5+mn1
l2=il2+5+mn2
endif
c des valeurs
i1=id1-inc1
i2=id2-inc2
l1r=l1r-1
l2r=l2r-1
do 185 i=0,mn1-1
i1=i1+inc1
i2=i2+inc2
if(istk(i1+1)-istk(i1).ne.istk(i2+1)-istk(i2) ) goto 184
nl=istk(i1+1)-istk(i1)-1
do 182 ii=0,nl
if(istk(l1r+istk(i1)+ii).ne.istk(l2r+istk(i2)+ii)) goto 184
182 continue
istk(il1+3+i)=itrue
goto 185
184 istk(il1+3+i)=1-itrue
185 continue
istk(il1)=4
istk(il1+1)=m1
istk(il1+2)=n1
lstk(top+1)=sadr(il1+3+mn1)
goto 999
c
999 return
end
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