[Numpy-discussion] Community Poll: numarray default underflow handling == "ignore" ?

Todd Miller jmiller at stsci.edu
Fri Nov 21 09:31:09 CST 2003


On Fri, 2003-11-21 at 12:20, Colin J. Williams wrote:
> 
> 
> Todd Miller wrote:
> 
> >On Fri, 2003-11-21 at 09:58, Alexander Schmolck wrote:
> >  
> >
> >>Todd Miller <jmiller at stsci.edu> writes:
> >>
> >>    
> >>
> >>>On Thu, 2003-11-20 at 18:18, Chris Barker wrote:
> >>>      
> >>>
> >>>>Todd Miller wrote:
> >>>>        
> >>>>
> >>>>>Someone recently suggested that we change the default for numarray
> >>>>>underflow checking to "ignore".  Please  vote (+1, 0, -1):
> >>>>>          
> >>>>>
> >>>>What is it currently, and what other options are there?
> >>>>        
> >>>>
> >>>The default of underflow is "warn"
> >>>      
> >>>
> >>I much prefer the current default. Having (potential errors) ignored silently
> >>is IMHO against the spirit of python. What's the problem with manually setting
> >>"ignore underflow" if and when one knows that underflows might occur but can
> >>safely be ignored?
> >>    
> >>
> >
> >I'll read that as -1.  :-)
> >
> This proposal leaves the control with the user, which seems to be the 
> best way to go.

Just to be clear,  all we're talking about is the *default* handling of
underflow.  Regardless of what we decide,  underflow handling will be
configurable by the user on a per-thread basis as either: "ignore",
"warn", or "raise".

Todd

> Colin W.
> 
-- 
Todd Miller 			
Space Telescope Science Institute
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