Re: What is correct way to pack records

["Steve" <nospam_steved94@comcast.net>]

Just to complicate matters, with Microsoft C/C++ you have pragmas:

#pragma pack(1)

So that the packing in the C code may be varied.

Steve
(The Duck)

"Marc A. Criley" <mcNOSPAM@mckae.com> wrote in message
news:3046atF2qaqsjU1@uni-berlin.de...
> "Jeffrey Carter" <spam@spam.com> wrote:
>
> > Marc A. Criley wrote:
> >
> > > Yes.  Though it carries some baggage that may or may not matter to
you.
> > >
> > > pragma Convention(C, MyRec);
> >
> > This may guarantee the order, but it doesn't guarantee packing, and the
> > results may vary from one compiler to another.
>
> Correct, that's why it's essential that the layout of the record
definition
> be verified against the file record layout.
>
> I my experience (with GNAT and Rational Apex) I find that "Convention C"
> does do the "right" thing, especially since it's supposed to conform to
how
> a C compiler would lay out the data.
>
> Marc
>
>