Re: [boost] [serialization] The constant object problem

From: Robert Ramey (ramey_at_[hidden])
Date: 2005-08-23 18:39:16

A couple of comments/questions:

> int main()
> {
>    C c;
>    c.setData("Hello world");
>    vector <C*> v;
>    v.push_back(&c);  // how do you expect to load (de-serialize) this?
>    //...
>    ar << c << c;  // why have more than one here?
> }
>

> To have a c with meaningfull data, it cannot be const.

but a reference to a const can be passed

> I cannot create a local object that is a copy of the object (it is
> noncopyable)

use a reference

> I do not think making the object untracked would be a good idea in
> this case (I might be wrong ?)

why not?  What's the point of storing multiple copies if they are all the 
same?

> So far, the best way I found to be able to serialize this object is :
>
> C const & cForSerialize = c;
> ar << cForSerialize << cForSerialize;
>
> But I do not think this is really elegant code. Is there a better
> alternative ?

factor our a save_function

save_all(const C & c){
    ar << c << c;
}

then use save(c) - only one possibility.

Robert Ramey