RE: [Boost-Users] ublas::matrix sharing storage with ublas::vecto r

From: Scott Sinclair (scott.sinclair_at_[hidden])
Date: 2002-11-28 01:16:18

Sorry, I obviously misunderstood your original question :(

On 28/11/2002 03:46 Stephen Crowley wrote:

> What do you mean by "just use it as" ?

> For example.. I have a matrix<double> m(5,5);
> 
> In some code I actually need to use it as a 5x5 matrix.. but 
> other parts
> must reference it as a vector (to pass to another library).
> 
> Currently I am doing something like this
> 
> matrix<double> m(5,5);
> // do stuff to m
> vector<double> v(25);
> v.data() = m.data();
> // pass v to library
> // get results back
> m.data() = v.data();
> 
> This is obviously not optimal.. and if both m.data() and 
> v.data() pointed to
> the same location in memory the problem would be solved. 
> 
> I suppose I might be able to get around it by making my own 
> storage class
> that allows you to specify a location and size instead of 
> allocating one
> itself.
> 
> --Stephen

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