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pointers and IF statement [message #46339]

Wed, 16 November 2005 12:08

JJMeyers2
Messages: 12
Registered: October 2005

Junior Member

Hello,

I am trying to learn pointers and I had a problem while writing a
program.
My program is comparing two lists of data (list1,list2) and is trying
to find in which positions the data match, but because that might be in
more than 2 positions I am using the pointers to store the data. In the
case that the program does not find a match I want to be able to
substitute with another value.
So my program goes like this:

match1=ptarr(number,/allocate_heap)
FOR i=0,number-1 DO BEGIN
*match1[i]=WHERE(list1 GT list2(i))
IF *match1[i] EQ -1 THEN BEGIN
*match1[i]=WHERE(list1-list2(i) EQ min(list1-list2(i))
ENDIF
ENFOR

When i try to run this i get:
Expression must be a scalar or 1 element array in this context: <BYTE
Array[2]>.
and I can not figure out how to correct the problem.

Does anyone have any suggestions?

Thank you for the help!

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pointers and IF statement

By: JJMeyers2 on Wed, 16 November 2005 12:08

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