evl() is the best function ever! Tests for empty value, eg

procedure test
lparameter tcMsg
local cMsg
cMsg= evl(m.tcMsg, 'Hey you')
wait window m.cMsg


>I hadn't noticed this, since I don't use nvl() with function or that sort of stuff. But yes, this goes contrary to my expectations, and I had to test it myself in order to believe it! (VFP 6). And yes, iif() - like AND, and OR - only evaluates an expression if it is necessary to do so. I hadn't tested that previously, either.
>
>I tested nvl(). What does evl() do? It doesn't seem to be available in VFP 6.
>
>>Yikes!
>>Both these function evaluate the second parameter regardless. This goes against the "feel" of everthing else in the language (eg IIF())
>>
>>eg.
>>? nvl('x', temp())
>>
>>procedure temp
>>wait window 'hi'
>>
>>
>>will run temp!
>>I don't like it. :-(
>>It takes away a lot of the usefulness of the evl and nvl functions - which I otherwise just love.
>>
>>Hey MS - Any plans to change of "fix" this.