Craig Rodrigues wrote:
> #ifdef _POSIX_REALTIME_SIGNALS
> According to the letter of the law:
> http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap02.html
>
> "The following symbolic constants shall either be undefined or defined
> with a value other than -1."
>
> So, this is legal way to implement these macros. It just breaks my code. :)
Crap. I missed that.
To be totally correct, you will need to:
#ifdef _POSIX_REALTIME_SIGNALS
#if (_POSIX_REALTIME_SIGNALS != -1)
...
#endif
#endif
It's annoying, but doing this will ensure that there are no
gaps through which some system other than FreeBSD might fall.
> If that is not an option, then what is the correct way for me to write
> my code? Keep in mind that code in ACE must be very portable, and work
> on platforms which may not adhere 100% to the letter of the POSIX law.
This argues for two tests, instead of one. Sorry.
PS: There is probably a technicality for wehther or not the "#if"
directive is supported, seperately from the value compare.
PPS: Technically, it doesn't say that the defined value has to
be an integer type, either... some people are just jerks.
8-(.
-- Terry
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