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Subject: Re: Yet another GCC question

Author: Russell Reagan

Date: 18:44:41 12/05/03

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On December 05, 2003 at 21:24:19, Robert Hyatt wrote:

>I have a structure that looks like this:
>
>struct BOOK_POSITION {
>  long long signature;
>  unsigned int status;
>  float learn;
>  int CAP;
>}
>
>sizeof(above) gives 20 on my dual xeon, 24 on the
>opteron.  I'd like to make it 20 so that my binary book
>can be shared between the opteron and the rest of the
>intel world.
>
>Is there a reasonably portable way to fix this???
>
>(note the long long becomes a long on the opteron, the rest
>are not changed.)

The -fpack-struct option seems to do the trick, but I think it will probably
remove any padding for all structs, which might not be a good thing overall.



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