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Raldi
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Find struct size in bytes.

Asked by Raldi
on 1 Jul 2014
Latest activity Edited by Raldi
on 1 Jul 2014
Hi all,
I have a struct element that contains some vectors and another struct that in it's turn contains some more data. What is the best way of finding the exact size in bytes of the entire struct?

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1 Answer

Jan
Answer by Jan
on 1 Jul 2014

It depends on how "the exact size" is defined. Do you mean the payload, which is the size of the data only, or do you want to consider the memory used for the headers of the fields also?
Is the output of the whos command sufficient?

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Raldi
on 1 Jul 2014
Good question, well that struct saves some compressed data in memory, so I guess I would also need the headers too. If possible though for educational reasons I would appreciate both methods. 'Whos' from what I tried does not provide an acceptable solution (maybe because of the fact that in my original struct there is another one nested inside)

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