Overloading User Written Function
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I have a function that can take a variable number of inputs. The function definition looks like this:
function [i] = fun(func,argin1,argin2,argin3, argin4, argin5,argin6,argin7)
These variables then get passed into a switch statement like this:
switch nargin
case 1
try
i = calllib('User_DLL',func);
catch exception
str = {exception.identifier,sprintf('%s did not load',func)};
h = warndlg(str);
waitfor(h);
end
case 2
try
i = calllib('User_DLL',func,argin1);
catch exception
str = {exception.identifier,sprintf('%s did not load',func)};
h = warndlg(str);
waitfor(h);
end...
And it keeps going for all possible number of inputs. Is there a way to overload this function so that I just need to know the number of input and then I can pass the input arguments into calllib in the order they first appeared in? It seems like this process can be greatly streamlined.
采纳的回答
I think generally for this you would use a varargin type of input to your function.
You can then test the length of varargin and you can pass it on as varagin{:} to another function that also wants those arguments in the same way.
e.g. if you have a function that will call the plot(...) function you can have a varargin argument to your function (even after named arguments) and then just pass it straight to plot as varargin{:} if you know the arguments are in a form that plot accepts - e.g. property, value pairs.
For example I have a function in one of my classes that does the following:
function setGUIHandleProperty( guiHandle, varargin )
if ishandle( guiHandle )
set( guiHandle, varargin{:} );
end
end
which just acts as a wrapper for setting some figure properties.
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