Valarray work (Was... Re: Efficiency)

[Paolo Carlini]

Paolo Carlini wrote:

>Otherwise, in the meanwhile I'm going to look into possible more subtle
>binary compatibility issues...
>  
>
Well, struct _Array... Maybe it would be better not changing it to a
POD, at least not immediately, we should look a bit more into that (I'm
concerned that argument passing will change, as you remark in the
comment, and that would be highly disruptive :(.

If you think the performance disadvantages are bearable, for now, I
would suggest not touching it, I don't think the change is strictly
intertwined with the other and should be possible to deal with it
separately, later...

Paolo.