sizeof a struct

[Phui Hock]

I've found this article "What should sizeof (struct xyzzy) return?" at
http://www.delorie.com/djgpp/v2faq/faq22_11.html. Just thought of
sharing it with anyone who came across the same problem.

Thanks for the clues, guys

 

[Richard Bos]

I've found this article "What should sizeof (struct xyzzy) return?" at
http://www.delorie.com/djgpp/v2faq/faq22_11.html. Just thought of
sharing it with anyone who came across the same problem.

While the solutions on that page are (for obvious reasons) partly
system-specific, in particular the attribute-packed one, its explanation
of the problem is good, IMO.

Richard

 

[Villy Kruse]

While the solutions on that page are (for obvious reasons) partly
system-specific, in particular the attribute-packed one, its explanation
of the problem is good, IMO.

Just need to note that some processors don't tolerate unaligned access
at all. You get a program crash rather than some performance penalty.

Of course, djgpp is limited to Intel x86 only so this doesn't apply.

Villy

 

[Darrell Grainger]

I've found this article "What should sizeof (struct xyzzy) return?" at
http://www.delorie.com/djgpp/v2faq/faq22_11.html. Just thought of
sharing it with anyone who came across the same problem.

Thanks for the clues, guys

This is in the FAQ.

http://www.eskimo.com/~scs/C-faq/q2.13.html

There is also a reference to q2.12 as well.