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A strange behaviour of parameters passing [message #15630]

Thu, 03 June 1999 00:00

Daniel SAGE
Messages: 10
Registered: April 1998

Junior Member

Hi,
Who can explain me the strange behaviour when I passed my parameters ?
I create a small and stupid example to see the disfunctionning of IDL.
Why the first call of the procedure 'one' returns 1 and the second call
return 2 ? According the documentation of IDL, the second calling is
correct but
not the first calling.
Thank you

pro one, b
b[0] = 2
end

pro two
a = intarr(1)
a[*] = 1
one, a[*]
print, a
one, a
print, a
end

% Compiled module: ONE.
% Compiled module: TWO.
IDL> two
1
2

------------------------------------------------------------ ----------------
Daniel Sage
EPFL - Swiss Federal Institute of Technology - http://www.epfl.ch
BIG - Biomedical Imaging Group - http://bigwww.epfl.ch

Address: EPFL, DMT/IOA, BM, CH-1015 Lausanne, Switzerland
Tel: +41 21 693 5189
Fax: +41 21 693 3701
Email: daniel.sage@epfl.ch
------------------------------------------------------------ ----------------

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[Message index]

		A strange behaviour of parameters passing By: Daniel SAGE on Thu, 03 June 1999 00:00
		Re: A strange behaviour of parameters passing By: David Kastrup on Mon, 07 June 1999 00:00
		Re: A strange behaviour of parameters passing By: davidf on Mon, 07 June 1999 00:00
		Re: A strange behaviour of parameters passing By: rmlongfield on Mon, 07 June 1999 00:00
		Re: A strange behaviour of parameters passing By: davidf on Fri, 04 June 1999 00:00
		Re: A strange behaviour of parameters passing By: Vapuser on Fri, 04 June 1999 00:00
		Re: A strange behaviour of parameters passing By: steinhh on Fri, 04 June 1999 00:00
		Re: A strange behaviour of parameters passing By: Liam Gumley on Thu, 03 June 1999 00:00

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