[PATCH 1/5] Add the field checking for missing value after opration

[Steve Grubb]

On Wednesday 06 August 2008 04:46:27 Zhang Xiliang wrote:
> Hello Steve,
>
> >  	if (v == NULL || f == v)
> >  		return -1;
>
> I have some questions for "f == v".
>
> I think it only checks the address of "f" and "v".

Yes, this was in attempt to make sure that they didn't type -F =10. In that 
case v will equal f because they start at the same address.

-Steve