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Re: Scary bug with array assignment [message #89258 is a reply to message #89257]

Sun, 10 August 2014 12:25

Fabzi
Messages: 305
Registered: July 2010

Senior Member

On 10.08.2014 20:57, Paddy Leahy wrote:
> Is there a big hole in my understanding of IDL array assignment, or is this a ghastly bug?

The problem is not the assignment, it is the "+="

In your example, if you transform:

IDL> for jj=0,2 do sum[0,jj] += data[*,jj]

into what it really is, i.e:

IDL> for jj=0,2 do sum[0,jj] = sum[0,jj] + data[*,jj]

it may explain your problem.

Cheers,

Fabien

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[Message index]

		Scary bug with array assignment By: Paddy Leahy on Sun, 10 August 2014 11:57
		Re: Scary bug with array assignment By: Fabzi on Sun, 10 August 2014 12:25
		Re: Scary bug with array assignment By: Paddy Leahy on Sun, 10 August 2014 12:41

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