Re: [Boost-users] iostreams::stream: flush doesn't work but endl does

From: Rob Desbois (rob.desbois_at_[hidden])
Date: 2008-01-23 11:14:59

It does now ;-)

Apologies for what may have been a stupid question - it's not that I didn't
look at the documentation, more that - as I've found with attempting to
extend the C++ standard iostream library - it doesn't seem that clear how to
achieve a certain task and why things have to be done a certain way.

Thanks for the help again :-)
--rob

On Jan 23, 2008 2:36 PM, Eric MALENFANT <Eric.Malenfant_at_[hidden]>
wrote:

> boost-users-bounces_at_[hidden], le 23 janvier 2008 07:07:
> > Hi all,
> >
> > I've created my own iostreams device (for a serial port) which for
> > debugging purposes prints out calls to read()/write().
> >
> > I'm constructing a stream on the device like this:
> >     serial_device serial("/dev/ttyS3", serial_device::Baud38400);
> >     stream<serial_device> s(serial);
> >
> > If I do this:
> >     s << "hello world" << endl;
> > serial.write() is called and does its debug output, but with this:
> >     s << "hello world\r" << flush;
> > I get nothing despite using 'flush'.
> >
> > I've also tried calling s.flush() manually but get the same
> > lack of effect.
> > How come flush isn't working as it should here?
>
> A wild guess: Does serial_device implement the "Flushable" concept?
> http://www.boost.org/libs/iostreams/doc/index.html?path=4.1.3.2
>
>
> Éric Malenfant
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-- 
Rob Desbois
Eml: rob.desbois_at_[hidden]
Tel: [phone]
"There's a whale there's a whale there's a whale fish" he cried, and the
whale was in full view.
...Then ooh welcome. Ahhh. Ooh mug welcome.