Re: [ublas] vector::pointer access

From: Michael Stevens (mail_at_[hidden])
Date: 2005-11-30 16:22:47

On Tuesday, 29. November 2005 22:53, Shawn D. Pautz wrote:
> All,
>
> There is a difference between 1.33.0 and 1.33.1 Beta that is causing me
> some problems with gcc 3.4.4.  In class vector the typedef for pointer
> and const_pointer has changed from being public to being private.  Was
> this intended? 

The private pointer/const_pointer change is prior to 1.33.0. About a year ago 
I believe.

> I'll note that the documentation for the Vector concept 
> still indicates that it is a refinement of RandomAccessContainer, which
> requires a public typedef. 

Bad. An oversight. The Concepts tests only check for the to common 
requirements of all classes which model a Vector. The specific Random Access 
Container requirement of ublas:vector is not specifically checked.

I have commited a FIX to the 1_33 branch. The HEAD already has the correct 
public versions.. Can you test?

> I thought there had been discussion of 
> dropping that requirement - am I looking at the right documentation?

I looked up my previous post on the subject.

Quote "
Importantly I have removed Random Access Container from the list of Concepts 
refined by Vector. The problem is that Random Access Container requires the 
iterator to be a Random Access Iterator. Not all Vector's can provide this.

Instead I have made ublas::vector a model of Random Access Container. This 
makes sense as the aim of introducing a relationship with Random Access 
Container was avoid surprises by people using ublas::vector as a std::vector.
"

Hope that all make sense.

Michael
-- 
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