function valid = isprop(varargin)

%ISPROP Returns true if the property exists.

%   V = ISPROP(H, PROP) Returns true if PROP is a property of H.

%   V is a logical array of the same size as H.  Each true element of V

%   corresponds to an element of H that has the property PROP.

%   Copyright 1988-2016 The MathWorks, Inc.

narginchk(2,3); 

objQueried = varargin{1}; 

propName = varargin{2}; 

switch nargin 

    case 2 

        try % size may be overloaded by the object and lead to error here 

            valid = false(size(objQueried)); 

        catch % return FALSE when SIZE is overloaded to not return numbers

            valid = false;

            return;

        end

        if numel(objQueried) == 1 

            valid = hasProp(objQueried, propName); 

        else

            % Use for-loop: input may not support ARRAYFUN (e.g. function_handle)

            for i = 1:numel(objQueried)

                valid(i) = hasProp(objQueried(i), propName);

            end

        end 

    case 3 % ISPROP for class - package and class name

        try

            p = findprop(findclass(findpackage(objQueried),propName),varargin{3});

            valid = ~isempty(p) && strcmpi(p.Name,varargin{3});

        catch

            valid = false;

        end

    otherwise

        assert(false); % Number of inputs should only be the above values

end

end