Re: [Quantlib-dev] Array vs std::vector + free operators

[DU V. DE V. F. G. P. <fra...@ca...>]

>Apart from adding operations to std::vector, the above is not as
>efficient as Array:operator+. if you write

>std::vector<Real> w =3D u+w;

>the addition returns a Disposable, but the std::vector constructor
>doesn't know what to do with it, so it copies its contents instead of
>swapping. If you want full efficiency, you have to write:

>std::vector<Real> w;
>w.swap(u+v);

>which is more awkward. On the other hand, Array defines a constructor
>taking a Disposable, so there's no moving in

>Array w =3D u+v;

I badly missed this point, I will slap myself with bjarne's book ;-)

Fran=E7ois