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+// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+// Copyright (C) XXXX-2008 - INRIA
+// Copyright (C) 2010 - DIGITEO - Michael Baudin
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution. The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+
+
+function [xadj,iadj,v]=sp2adj(A)
+ // sparse conversion to adjacency
+ // See sp2adj.xml for help.
+ //
+ // Check number of arguments
+ [lhs, rhs] = argn()
+ if ( rhs <> 1 ) then
+ lstr = gettext("%s: Wrong number of input arguments: %d to %d expected.\n")
+ error ( msprintf(lstr,"sp2adj",1,1))
+ end
+ if ( and(lhs <> [0 1 2 3]) ) then
+ lstr = gettext("%s: Wrong number of output arguments: %d to %d expected.\n")
+ error ( msprintf(lstr,"sp2adj",0,3))
+ end
+ //
+ // Check type of arguments
+ if ( typeof(A) <> "sparse" ) then
+ lstr = gettext("%s: Wrong type for input argument #%d.\n")
+ error ( msprintf(lstr,"sp2adj",1))
+ end
+ //
+ // Check size of arguments
+ // Nothing to do
+ //
+ // Check content of arguments
+ // Nothing to do
+ //
+ [ij,v,n]=spget(A')
+ N=n(1)
+ if ( ij == [] ) then,
+ xadj=ones(n(2)+1,1)
+ iadj=[]
+ v=[]
+ else,
+ [xadj,la,iadj]=ta2lpd(ij(:,1)',ij(:,2)',N+1,N)
+ xadj=xadj(:)
+ iadj=iadj(:)
+ end
+endfunction