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function identical = areIdentical(struct1, struct2)
% identical = areIdentical(SBMLStruct1, SBMLStruct2)
%
% Takes
%
% 1. SBMLStruct1, any SBML structure
% 2. SBMLStruct2, any SBML structure
%
% Returns
%
% 1. identical =
% - 1 if the structures are identical i.e. contain same fields and the same values
% - 0 otherwise
%<!---------------------------------------------------------------------------
% This file is part of SBMLToolbox. Please visit http://sbml.org for more
% information about SBML, and the latest version of SBMLToolbox.
%
% Copyright (C) 2009-2012 jointly by the following organizations:
% 1. California Institute of Technology, Pasadena, CA, USA
% 2. EMBL European Bioinformatics Institute (EBML-EBI), Hinxton, UK
%
% Copyright (C) 2006-2008 jointly by the following organizations:
% 1. California Institute of Technology, Pasadena, CA, USA
% 2. University of Hertfordshire, Hatfield, UK
%
% Copyright (C) 2003-2005 jointly by the following organizations:
% 1. California Institute of Technology, Pasadena, CA, USA
% 2. Japan Science and Technology Agency, Japan
% 3. University of Hertfordshire, Hatfield, UK
%
% SBMLToolbox is free software; you can redistribute it and/or modify it
% under the terms of the GNU Lesser General Public License as published by
% the Free Software Foundation. A copy of the license agreement is provided
% in the file named "LICENSE.txt" included with this software distribution.
%----------------------------------------------------------------------- -->
if ~isValid(struct1)
error('first argument must be an SBML Structure');
elseif ~isValid(struct2)
error('second argument must be an SBML Structure');
end;
identical = 1;
fields1 = fieldnames(struct1);
fields2 = fieldnames(struct2);
if length(fields1) ~= length(fields2)
identical = 0;
end;
% fieldnames the same
if (identical)
i = 1;
while identical && i <= length(fields1)
if ~strcmp(fields1{i}, fields2{i})
identical = 0;
end;
i = i + 1;
end;
end;
%fieldvalues the same
if (identical)
i = 1;
while identical && i < length(fields1)
value1 = getfield(struct1, fields1{i});
value2 = getfield(struct2, fields1{i});
if isstruct(value1)
if length(value1) > 0 && ~areIdentical(value1, value2)
identical = 0;
end;
elseif isnan(value1)
if ~isnan(value2)
identical = 0;
end;
elseif isnumeric(value1)
if value1 ~= value2
identical = 0;
end;
elseif ischar(value1)
if ~strcmp(value1, value2)
identical = 0;
end;
end;
i = i + 1;
end;
end;
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