Re: [Boost-users] problem... maybe boost could help

From: Ovanes Markarian (om_boost_at_[hidden])
Date: 2007-06-26 09:02:05

If you like, prepare me some simple example and I can correct it or help you at this point.

With Kind Regards,

Ovanes Markarian

On Tue, June 26, 2007 14:56, Lukasz wrote:
>
> You summed it up very well with the first paragraph. I've been trying to
> template this from the beginning, but it just wouldn't fit into the design.
> However, i think i'll be able to use variant within one of my maps to store
> the "real" type of the event which should work perfectly for my needs.
> Thanks for all the input... it really helped to get some ideas together and
> variant will probably do the trick (but i still have to fiddle some more
> with the idea).
>
> Thanks again.
>
> Lukasz K.
>
>
> Ovanes Markarian wrote:
>>
>>
>> My idea is based on fact that you (program developer or another developer)
>> know what is going to
>> be send. What you are trying to do is erasing the type to some base and
>> that would not work.
>>
>> So you send event must handle derived type and put it correctly to
>> variant. A possible solution
>> would be:
>>
>> template<class EventType_>
>> void sendEvent(EventType_ const& ev)
>> {
>>    m_eventContainer = ev; //<- now compiler knows exactly the type of ev
>> m_derivedHelper->dispatchEvent(&m_eventContainer);
>> }
>>
>>
>> Best Regards,
>> Ovanes
>>
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