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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
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