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Re: Named and Anonymous structures ? [message #10054 is a reply to message #5121]

Sun, 05 October 1997 00:00

hahn
Messages: 108
Registered: November 1993

Senior Member

On Fri, 6 Oct 1995 17:09:15 GMT, you wrote:

Hi Rob,

If I'm not totally mistaken you could use the procedure
create_struct to nest anonymous structures. This wasn't
possible before IDL 3.6.1 !

Why do you define a structure inside a procedure while it is
returned via the parameter list. Can't you define it before
calling the procedure ? This would allow to use different
code to access fields available in one structure while
skipping the code for a different structure at a different
call. The following worked for me:

pro testit, rqm, s

s.n = 100

print, rqm, s.n, size(s.fx1)

; Note: The variable s.fl1 is only present when rqm=1
;
if rqm eq 1 then print, -1, -1, size(s.fl1)

end
;
s1 = { ABC, n:100L, fx1:LonArr(100) }
s2 = { XYZ, n:100L, fx1:LonArr(100), fl1:fltarr(100) }

a1 = { ABC }
a2 = { XYZ }

testit, 0, a1
testit, 1, a2

end

Maybe I missed the point ...

Hope, this helps
Norbert Hahn

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[Message index]

		Named and Anonymous structures ? By: robk on Fri, 06 October 1995 00:00
		Re: Named and Anonymous structures ? By: hahn on Sun, 05 October 1997 00:00

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