// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2009 - DIGITEO - Pierre MARECHAL <pierre.marechal@scilab.org>
//
// 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

// Internal function

// =============================================================================
// tree_out = atomsCatTree( tree_in_1 , tree_in_2 )
//
// Date : 19/05/2009
// =============================================================================

function tree_out = atomsCatTree( tree_in_1 , tree_in_2 )

    rhs = argn(2);

    // Check number of input arguments
    // =========================================================================

    if rhs <> 2 then
        error(msprintf(gettext("%s: Wrong number of input argument: %d expected.\n"),"atomsCatTree",1));
    end

    // Check input arguments type
    // =========================================================================

    if type(tree_in_1) <> 17 then
        error(msprintf(gettext("%s: Wrong type for input argument #%d: matrix oriented typed list expected.\n"),"atomsCatTree",1));
    end

    if type(tree_in_2) <> 17 then
        error(msprintf(gettext("%s: Wrong type for input argument #%d: matrix oriented typed list expected.\n"),"atomsCatTree",2));
    end

    // tree_in_1 is the master tree :
    // =========================================================================

    tree_out  = tree_in_1;

    // Loop on tree_in_2 fields
    // =========================================================================

    fields = getfield(1,tree_in_2);
    fields(1:2) = [];

    for i=1:size(fields,"*")
        if ~ isfield(tree_out,fields(i)) then
            tree_out(fields(i)) = tree_in_2(fields(i));
        end
    end

endfunction