Re: Help a newbie

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#899

From: Jamie
Date: Wed, 07 Dec 2005 04:06

37 lines
2450 bytes

Nige wrote:
> Looking at some sample code.
> 
> I have a line, which calls a function
> 
> and the 3rd parameter is  @Cells^[0]
> 
> whats do the @ and the ^ and the [0] indicate.
> 
> thanks
> 
> 
  The @ generates an address of an item.
  so lets break this down.

  Cells is being treated like a pointer and
thus the use of ^ meaning that you are
fetching data via the pointer which is like
a road map giving directions of where the
start of the data which makes up the object
"CELLS" resides in.
    Since it's obvious that Cells must not
be a pointer already to start with, using the
@ infront will generate a pointer address of that
object.
    and the use of the [0] is like any other
array from that point on.
  it will simply use the Pointer address as the
starting base with the an offset of what
ever in the [?] to calculate the distant to
move from the start of the pointer.



-- 
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5

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