Amir Aslan Haghrah <amiraslanhagh...@gmail.com> added the comment:

Thank you for your response.

I noticed this issue while working with 'mmap' and memory sharing.
As you said I check it in 'C++' and I got the same result for my struct as 
Python.
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I used the 'sizeof' function to calculate my struct size to read it from mapped 
memory and I get wrong output in reading memory because of this aligning 
procedure.

Question: Structs map to memory unaligned but sizeof return the aligned size of 
struct.
How we can calculate the sizeof struct to use it in reading from memory?

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue35562>
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