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Problem using the method List->ToArray() [message #75971]

Wed, 11 May 2011 08:02

natha
Messages: 482
Registered: October 2007

Senior Member

Hi folks,

I have a list containing 2885 structures of the same type. When I want
to convert the list to an array I get the following error:
% LIST::TOARRAY: Unable to convert to type STRUCT: Element 260

LOL ! All the elements are the same type so I don't see what's going
on.. Anyone experienced this ?

Here is how I verify if all the elements in the list are the same:

;; GETTING THE TAG NAMES AND TAG TYPES OF THE FIRST STRUCTURE
str_ntags=N_TAGS(data[0])

str_names=TAG_NAMES(data[0])
str_types=INTARR(str_ntags)

FOR i=0l, str_ntags-1 DO str_types[i]=SIZE(data[0].(i),/TYPE)

;; THE CODE WILL STOP IF ONE ELEMENT IS NOT EQUAL TO THE FIRST ONE
FOR i=0l, N_ELEMENTS(data)-1 DO BEGIN
aux_names=TAG_NAMES(data[i])
IF N_ELEMENTS(aux_names) NE str_ntags THEN STOP
FOR j=0l, str_ntags-1 DO BEGIN
IF aux_names[j] NE str_names[j] THEN STOP
IF str_types[j] NE SIZE(data[i].(j),/TYPE) THEN STOP
ENDFOR
ENDFOR

Thank you,
nata

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Problem using the method List->ToArray()

By: natha on Wed, 11 May 2011 08:02

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