Re: Non-stub setvbuf

[Jens Gustedt <jens.gustedt@inria.fr>]

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Am Sonntag, den 17.01.2016, 12:03 +0100 schrieb Markus Wichmann:
> On Sun, Jan 17, 2016 at 09:59:52AM +0100, Jens Gustedt wrote:
> > How about just using setvbuf as an indication that the user wants the
> > buffer to be scrubbed? And so just zero it?
> > 
> > I wouldn't expect setvbuf to be used in places that are performance
> > critical, so an additional memset shouldn't do much harm, I think.
> > 
> 
> That isn't the use everyone has for it. I routinely set stdout and stdin
> to line buffered in my programs, because glibc sets the buffering mode
> for these streams based on file type, and I want to be consistent in all
> cases. And those applications can be performance critical.
> 
> But then, I provide no buffer to these calls, so maybe differentiate on
> that?

Yes, sorry, I wasn't clear enough. This is what I meant, only scrub
buffers if the user provides a buffer argument.

Jens

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