Re: [ublas] How to instantiate ublas vector from std::vector

Subject: Re: [ublas] How to instantiate ublas vector from std::vector
From: Jeremy Conlin (jeremit0_at_[hidden])
Date: 2009-04-09 22:59:50

On Thu, Apr 9, 2009 at 6:24 PM, Kenneth Porter <shiva_at_[hidden]>wrote:

> On Thursday, April 09, 2009 1:34 PM -0400 Jeremy Conlin <
> jeremit0_at_[hidden]> wrote:
>
>  But such a constructor does not exist.  I thought that using a
>> std::vector for the storage type of a ublas vector allowed me to do this.
>>  Can someone help me understand how I can do this (or some workaround)?
>>
>
> I don't know the answer, but it might be useful to know why you want to do
> that. I recall reading that the ublas::vector needs to remain a fixed size
> for its lifetime, so you have to be careful not to do anything to its
> storage to break its assumptions.

Yes, of course.  I would like to be able to use std::vectors and ublas
vectors (almost) interchangeably.  I was hoping that if a function returned
a std::vector and the calling function assigned that to a ublas vector then
all would work out without any trouble.  Is this not a possibility?

Thanks,
Jeremy