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Re: how to deal with problem:Loop limit expression too large for loop variable type. [message #59650]

Fri, 04 April 2008 05:24

Allan Whiteford
Messages: 117
Registered: June 2006

Senior Member

Magic.Zhou@gmail.com wrote:
> i just code a for function
> for i=0, ArraySize do begin
> if (Seg_Grey_Image[i] le 255) and (Seg_Grey_Image[i] ge 240) then
> begin
> Seg_Grey_Image[i]=255
> endif
> endfor
> however, the error is :Loop limit expression too large for loop
> variable type.
> it seems this 'ArraySize' is too big. how can I deal with this
> problem?
> Thank you!

Change:

"for i=0, ArraySize do begin"

to

"for i=0L, ArraySize do begin"

(note the addition of a capital 'L' after the zero).

If you set your loop variable to be a normal (2 byte) integer you can
only loop up to 32,768. Adding in the 'L' sets it to a long (4 byte)
integer.

Thanks,

Allan

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