function varargout = apply(c,func,varargin)
% COMPONENTS/APPLY applies arbitrary functions to a Components strucutre
%
% Usage:
%  [any output] = apply(c,func,[any other inputs])
%
% Input:
%  c    - input Components data
%  func - The function handle to apply to the data
%  other arguments passed on to 'func'.
% Output:
%  all Components structures, each holding the output of 'func' for each
%  input component in sequence
%
% Notes:
%  Only 1 and 2 outputs are implemented.
%  This function is mainly intended to help make wrappers for "plain"
% functions to allow them to work on Components structures. As such, it is
% most useful as a model for programmers.

% Kenneth C. Arnold (for NASA GSFC), 2004-08-06

nc = get(c,'nc');
varargout{1} = c;
if nargout == 1
    for i=1:nc
        varargout{1}.d(i).c = feval(func,c.d(i).c,varargin{:});
    end
elseif nargout == 2
    varargout{2} = c;
    for i=1:nc
        [varargout{1}.d(i).c, varargout{2}.d(i).c] = feval(func,c.d(i).c,varargin{:});
    end
end