Can anyone explain why should NIL not be a valid value?

--------------------------------------------------
From: "Jose F. Gimenez" <jfgime...@wanadoo.es>
Sent: Monday, June 22, 2009 5:17 AM
To: "Eduardo Fernandes" <modals...@yahoo.com.br>; "xHarbour-Developers List" 
<xharbour-developers@lists.sourceforge.net>
Subject: Re: [xHarbour-developers] Big problem with TXML():SetAttribute()

> Eduardo,
>
>> in c) I think return the previous value is more useful.
>> in d) I think we can replace ! empty( xvalue) to ! hb_isnil(xvalue).
>
> I've changed it to allow a) and restored all behaviour of b) c) and d).
> ITOH, now it's not checking if xValue is nil. If you want, you may add it.
>
>
> Regards,
>
> Jose F. Gimenez
>
>
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