building and analysing C structs with Storable
stefanor at cox.net
Sun Oct 14 15:53:09 EDT 2007
On Sun, Oct 14, 2007 at 09:28:45PM +0200, Henning Thielemann wrote:
> Do different C compilers on the same platform actually use different
> layouts for structs?
Yes, because there are tradeoffs involved. On x86, the optimal
alignment for long double is 8 bytes, but a lot of people aren't crazy
about 6 bytes of padding per 10 byte datum, so some compilers default to
4 byte alignment.
> If yes, how can I find out, with which compiler a
> library was compiled?
Ask the person who did the compiling.
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