On 27-10-2011 15:12, Steve Teale wrote:
How big a deal would it be to add a NULL indicator to the VariantN struct.

I use the term NULL as opposed to null deliberately. Variant already
provides the hasValue() method, which can serve as a null indicator. But
in using it as a parameter in database modules, it would be useful to be
able to give a Variant instance a type, as in v = "", but also to set it
explicitly as NULL with setNull() or whatever.

Could this fly without breaking existing code?

Steve

I'm not sure having three possible states in Variant is a good idea, but maybe I'm not quite following.

Doesn't it already carry type information when not set to a value?

- Alex

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