[fpc-pascal] alignment of types ( __alignof__ in fpc)

[Dmitry Boyarintsev]

Hello,

Porting some C-headers. Ran, into a declaration:

#define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *))

_alignof_ seems to be a compiler attribute
https://gcc.gnu.org/onlinedocs/gcc/Alignment.html

Is there anything similar available fpc?

Delphi doesn't seem to have any
http://stackoverflow.com/questions/30454118/how-to-translate-alignof-to-delphi

GNU Pascal seems to have.
http://www.gnu-pascal.de/gpc/AlignOf.html

thanks,
Dmitry
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