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[Steven Schveighoffer]

On 6/3/20 5:29 PM, Stanislav Blinov wrote:
> On Wednesday, 3 June 2020 at 21:04:23 UTC, Steven Schveighoffer wrote:
> 
>>> A thread-safe writeln would be threadsafe_writeln. Or, alternatively 
>>> there would be a writeln and a not_threadsafe_writeln. No reason to 
>>> pay for something you're not using. And still neither implementation 
>>> would call into C, the OS is right there.
>>
>> writeln writes to a FILE *, which is C. There's no way around it. FILE 
>> * is buffered i/o, so going around it would mean odd out-of-order output.
> 
> There's no way around writing to a FILE*? I... hope you didn't mean what 
> you wrote, all things considered ;)

Well, no way around it if you want writeln to do expected things ;)

Unless you are suggesting that Phobos completely drop support for 
interleaving printf and writeln calls? If you are, I assure you Walter 
will not accept that.

> I know what Phobos' writeln does. But whatever, this is not the topic. 
> Maybe in another thread at another time...

Not sure why you think the implementation of Phobos using C for I/O is 
not on-topic. It was you who suggested we could avoid it for certain 
calls to writeln.

-Steve