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negative array index in IDL8 [message #86374]

Fri, 01 November 2013 10:38

chuxiangning
Messages: 17
Registered: September 2012

Junior Member

Hi All,
My first noobie post here. I wanted to turn off negative index in the following commands. New IDL return error for x[[-1,-2]], but not for x[-1]. Is there anyway that I can turn off the negative indexing completely?
Thank you in advance!

pro test_negative_index
COMPILE_OPT STRICTARRSUBS
x=INDGEN(10)
print,x[-1]
print,x[[-1,-2]]
end

Here is the result I got:
% Compiled module: TEST_NEGATIVE_INDEX.
9
% Array used to subscript array contains out of range subscript: X.
% Execution halted at: TEST_NEGATIVE_INDEX 6

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[Message index]

		negative array index in IDL8 By: chuxiangning on Fri, 01 November 2013 10:38
		Re: negative array index in IDL8 By: suicidaleggroll on Fri, 01 November 2013 11:55
		Re: negative array index in IDL8 By: David Fanning on Fri, 01 November 2013 12:03
		Re: negative array index in IDL8 By: chuxiangning on Fri, 01 November 2013 13:05
		Re: negative array index in IDL8 By: David Fanning on Fri, 01 November 2013 13:31
		Re: negative array index in IDL8 By: wlandsman on Fri, 01 November 2013 15:18
		Re: negative array index in IDL8 By: chuxiangning on Fri, 01 November 2013 19:38
		Re: negative array index in IDL8 By: wlandsman on Sat, 02 November 2013 06:42
		Re: negative array index in IDL8 By: David Fanning on Sat, 02 November 2013 07:43
		Re: negative array index in IDL8 By: chuxiangning on Tue, 12 November 2013 12:21

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