Re: [boost] ublas: reserve

From: Toon Knapen (toon.knapen_at_[hidden])
Date: 2001-12-07 08:39:26

Peter Schmitteckert (boost) wrote:

> Salut,
> 
> On Friday 07 December 2001 13:37, Toon Knapen wrote:
> 
>>Peter Schmitteckert (boost) wrote:
>>
>>>Allthough a submatrix adapter would be sufficient for me.
>>>
>>Do you mean that you would first create a matrix of sufficient size,
>>then take a submatrix and resizing the latter does not need reallocation
>>as long as the size of the submatrix is not bigger as the size of the
>>original matrix. That would indeed cover the `quest for a minimal number
>>of reallocations`. 
>>
> 
> Yes, but I think a submatrix should not be allowed to resized larger than
> the original matrix.

Agreed. But what should happen if the users tries it anyway : throw an 
exception ? But isn't testing for this too time-consuming as the 
intention is exactly to have quickly a matrix with the correct size 
without losing time for allocating a new one.