STINNER Victor <victor.stin...@gmail.com> added the comment:

> ubsan complains about unaligned access when structs include "long double". An 
> example error:
> runtime error: member access within misaligned address 0x7f77dbba9798 for 
> type 'struct CDataObject', which requires 16 byte alignment

Can we use memcpy() to prevent such issue?

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nosy: +haypo

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue27987>
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