Re: [boost] [optional] from_optional

From: Mikael Lind (mikkelin_at_[hidden])
Date: 2006-03-12 13:43:34

On 3/12/06, Václav Veselý <vaclav.vesely_at_[hidden]> wrote:
>
> There is a common need of getting a value from an optional with
> possibility
> to
> define a default value in case of the optional is uninitialized. I suggest
> two
> alternatives:
>
>     optional<int> o;
>     int i = o.get(123); // a meber function get with an additional
> parameter
>     int j = from_optional(o, 123); // a free function
>
> Both alternatives can be implemented simultaneously.
>

Hello,

Is there any reason why you cannot do:

optional<int> o;
int i = o ? *o : 123;

Regards,
Mikael