Re: [TF-LIB] first text for new library built-in functions

On Jun 3, 2010, at 3:39 PM, Gregory Williams wrote:

> On Jun 3, 2010, at 3:34 PM, Andy Seaborne wrote:
>> The prototype definitions define the types of arguments accepted by the function and that after evaluation of expressions.
> Ah, sorry. My mistake. I was misunderstanding the blockquoted prototypes in each section as something closer to grammar definitions (but didn't bother to actually check the grammar).

After saying that, I think I'm still confused. Aren't IN and NOT IN similar to IF and COALESCE in that they treat evaluation errors differently?

2 IN (1/0, 2) yielding true seems like IN would have to function like COALESCE. Have I misunderstood how the evaluation happens?


Received on Thursday, 3 June 2010 19:44:13 UTC