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Subject: Re: [ublas] compessed_matrix updating issue
From: petros (pmamales_at_[hidden])
Date: 2012-02-29 14:55:47

Thx, Thomas!
Have not forgotten, did not know ! ;- ))
The documentation is rather scarce. Any pointer ?
Again thx a bunch,

-----Original Message-----
From: Thomas Klimpel
Sent: Wednesday, February 29, 2012 2:47 PM
To: ublas mailing list
Subject: Re: [ublas] compessed_matrix updating issue

petros wrote:
> I have a compressed_matrix column oriented matrix.
> I reead a Harwell Boeing file, so I can know its sizes and
> nbrNon0Elements, as well
> .the index arrays and the value data.
> So I create my matrix, and obtain references to the 3 arrays
> which I fill manually (i.e. by reading the file).
> Upon inspection of the matrix arrays, I see everything to be OK
> ( as expected) but the subscript operator gives 0’s.
> Also it appears the the iterators are invalidated – not sure about this
> though.
> Apparently there has to be a mechanism to “lock” things down.
> What do I need to do ?

I guess you have "forgotten" to call "set_filled"...

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