nulling a userdata

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• Subject: nulling a userdata
• From: "Wesley Smith" <wesley.hoke@...>
• Date: 2007年2月26日 16:33:07 -0800

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Is there a way from C that I can Null out a boxed pointer that has a
reference to it as a userdata so that when I do lua_touserdata(L, -1)
I will gett NULL? Or is this horrible design?
thanks,
wes

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