Re: Which doorway

From: Malcolm Smith (yg-boost-users_at_[hidden])
Date: 2002-12-10 04:48:17

I read Boost.Function info and it sounds like part of the solution.

Is there a way of associating a key with a container of *different*
boost.Function's ?

--
Malcolm Smith
MJ Freelancing- http://www.mjfreelancing.com
Software Protection for C++Builder
Borland Technology Partner
"Malcolm Smith" <yg-boost-users_at_[hidden]> wrote in message
news:at2uqb$5an$1_at_main.gmane.org...
> I'm no expert on these type of libraries but I have come to the point
where
> I must find time to study *this* library more.
>
> I have a current project that requires some re-writes in specific areas
and
> I'm hoping Boost will be able to make this job easier.
>
> Is there something in boost that will ease the implementation of a
> state-machine type functor.
>
> As an example, I am using a 3rd party C++Builder component that makes
socket
> connections to hardware devices.  I need to modify the connection code so
> 'what needs to be done after a connection success/failure' is handled in
the
> appropriate events.  The thing is, this connection event can be called due
> to connections in other areas of the application under different
conditions.
>
> If I can implement a state based connection handler then I could re-direct
> the calls to the appropriate (alternate) event.
>
> As an example (I'm only just starting to read up on the STL), I know I
could
> use a std::map to hold state values as the key and call the appropriate
> handler via a pointer to a function in .second - what I'm hoping is there
is
> a library that allows for unrestricted function signatures (different
> parameter lists) to be associated with state values.
>
> To make this clearer
>
>   // I know this is not valid code but it explains what I'm after
>   typedef std::map<int, *pf(...)> StateFunctions;
>
>   void Method1(void);
>   int Method2(TCustomClass &MyClass);
>
>   StateFunctions[1] = Method1;
>   StateFunctions[2] = Method2;
>
>
> Does this make sense to anyone ?  I've probably got all the terminology
> wrong so feel free to correct me where ever applicable.
>
> Thanks in advance.
>
> --
> Malcolm Smith
> MJ Freelancing- http://www.mjfreelancing.com
> Software Protection for C++Builder
> Borland Technology Partner
>
>
>
>
>
>
>
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