Data Alignment Macros?

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Can any of you gentlemen tell me what exactly are data alignment macros?

I remember checking out the UPX source a while ago, reading about it in
books, and have wondered every since.

 

[pete]

Can any of you gentlemen tell me what
exactly are data alignment macros?

The only code I've seen for alignment, is the use of a union
to align an array of char, with a more restrictive data type,
as in K&R2, 8.7

 

[Peter Pichler]

The only code I've seen for alignment, is the use of a union
to align an array of char, with a more restrictive data type,
as in K&R2, 8.7

You can also use bitfields in structures. Probably even less suitable for
the OP.

Peter