Re: use of gettop to change functionality

[Tony Finch <dot@...>]

On Tue, 1 Mar 2011, Luiz Henrique de Figueiredo wrote:

> > The entire point was not to treat nil and none as the same?
>
> BTW, the idiom for that is to call lua_settop(L,n) at the very start,
> for functions that require n arguments. This discards extra arguments
> and make sure that absent ones are replaced by nil.

Er, yes, Roberto is right that that patch was a quick hack in need of more
thought.

Thank you Luiz for reminding me of the right idiom.

Tony.
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