Boost logo

Boost :

Subject: Re: [boost] [any] new version
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2011-09-01 04:30:28

On 01/09/2011 05:26, Andrey Semashev wrote:

> In addition, on most platforms there will be multiple instances of
> type_id<T>::value for a single given T if the application uses
> type_id<T> in multiple modules.

That's not a problem, type_id<T>::value is a weak symbol.

> These instances will be initialized
> independently and most likely will have different ids. And since
> next_id() is also module-private, inter-module passing of boost::any
> becomes totally impossible.

You could make next_id a function with weak extern linkage, which should
be able to make it work.

Boost list run by bdawes at, gregod at, cpdaniel at, john at