RE: [Help-glpk] Feature request - option to flush output

[Hart, William E]

Excellent!  I see that I _do_ need to update glpk.

--Bill
 

> -----Original Message-----
> From: Andrew Makhorin [mailto:address@hidden 
> Sent: Monday, September 14, 2009 9:16 AM
> To: Hart, William E
> Cc: address@hidden
> Subject: Re: [Help-glpk] Feature request - option to flush output
> 
> > By default, IO streams are not regularly flushed; they are 
> buffered in 
> > the computer until 'enough' IO has been done (or until the 
> stream is 
> > closed).
> 
> > I'm piping glpsol through some Python code and this buffering is 
> > creating a noticable delay in my processing.  What I'd like is an 
> > option that enables explicit flushing of glpsol's output.  For 
> > example, after each status line is printed, you might execute:
> 
> >   flush(stdout)
> 
> > (or do "cout << flush" in C++).
> 
> Exactly this feature was added in glpk 4.35:
> 
>    The statement "if (c = '\n') fflush(stdout)" was added to the
>    internal routine xputc to provide "real-time" terminal output.
> 
> Probably you are using an older version of the package. If 
> so, download the most recent version, which is 4.39.
> 
> GLPK distribution can be ftp'ed from 
> ftp://ftp.gnu.org/gnu/glpk/ or from some mirror ftp sites; 
> see http://www.gnu.org/order/ftp.html .
> 
> 
> 
>