Re: Conditional compilation in Ada?

["Björn Lundin" <bnl@tiscali.se>]

tisdag 16 november 2004 20:13 skrev Hyman Rosen:
> The OP is running two separate programs. There should be a
> better solution than forcing him to make runtime tests for
> something which is static.
>
> A description of the data structure and its varieties is
> needed before we can offer really sage advice.

It all depends on _what_ differs. I work with a system running on Aix and 
Windows. We have internal process communication, which is done with shared 
memory + semphores on Aix and with memory mapped files on windows.
Doesn't help with smart data structrues when you do a pragma Import.

What we usually do when we can't solve the platform differences, is to write 
that in (yack) C, and export the same function names and arguments, and have
one c-file per platform. This could be solved in one file with #ifdefs but
we prefer a c-file or more _per_ platform

We then have the same Ada files, which imports the functions from respective 
platform's c-file
/Björn




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