writeln if not empty

[monarch_dodra]

On Tuesday, 11 March 2014 at 05:37:25 UTC, Timothee Cour wrote:
> Thanks,
> that indeed works in many cases but there are still others (eg 
> what if
> empty() prints, say in debug mode: writelnIfNotEmpty would not 
> print the
> debug information even though writeln() would execute that 
> debug code and
> print something).
>
> I was wondering whether there would be a robust way that would 
> check
> whether anything was written to stdout (eg via accessing raw 
> file pointer/C
> lib)

I have no idea how you could intercept such information. At 
least, not with "standard D". You'd (probably) have to, as you 
said, have to dig up C's stdlib.