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Re: [Discuss-gnuradio] Access to history before there is one (Block writ

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] Access to history before there is one (Block writing question)
Date: Thu, 2 Apr 2009 07:39:52 -0700
User-agent: Mutt/1.5.18 (2008-05-17)

On Thu, Apr 02, 2009 at 09:30:47AM -0500, Jason Uher wrote:
> >
> > Sorry, no.
> >
> > Eric
> >
> OK,
> Is there a way to distinguish between an uninitialized history (which
> seems to be all 0's) and a history whose data is all 0's?

No.  0 == 0 :-)

> Or perhaps some way that the work function knows this that it is the
> first time being called (I am currently kludging it with a class
> variable, 'cleared_buffer')

The instance variable should do it.


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