Thread: [Dynapi-Dev] != null or (elm)

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Is ther any difference in these two lines
(elm !=3D null)
(elm)
8an

To the best of my knawledge, ANY non-zero (or non-null) value equates to =
true.
so, IMHO, the two statements are the same
  ----- Original Message -----=20
  From: Eytan Heidingsfeld=20
  To: dyn...@li...=20
  Sent: Sunday, February 04, 2001 3:17 AM
  Subject: [Dynapi-Dev] !=3D null or (elm)

  Is ther any difference in these two lines
  (elm !=3D null)
  (elm)
  8an

On Mon, 5 Feb 2001, Doug Melvin wrote:

> To the best of my knawledge, ANY non-zero (or non-null) value
> equates to true. so, IMHO, the two statements are the same

For *most* purposes they are the same, but 0!=null, and there are cases
where that is important. There are lots of places in the DynAPI2 code
that test specifically for null for a reason. Especially when testing
width, height, x, y types of values, where zero is a valid value, but a
null value isn't.

It's all a matter of context for the variable being examined.

-- 
Ernest MacDougal Campbell III, MCP+I, MCSE <do...@gu...>
http://www.gunters.org/~dougal/
Lumber Cartel Unit #1654 (tinlc): http://come.to/the.lumber.cartel/
This message is guaranteed to be 100% eror frea!

I sometimes use this when I allow for three possible answers.  eg. My
cell:
    Null = no border
    False = 3D Border
    True = Inverted 3D Border

Doug Melvin wrote:

> To the best of my knawledge, ANY non-zero (or non-null) value equates
> to true.so, IMHO, the two statements are the same
>
>      ----- Original Message -----
>      From: Eytan Heidingsfeld
>      To: dyn...@li...
>      Sent: Sunday, February 04, 2001 3:17 AM
>      Subject: [Dynapi-Dev] != null or (elm)
>       Is ther any difference in these two lines(elm !=
>      null)(elm)8an
>
--
Michael Pemberton
mp...@ph...
ICQ: 12107010

Thread: [Dynapi-Dev] != null or (elm)

dynapi-dev