Re: Which doorway

10 Dec 2002

      ...
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
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"  wrote in message
news:at2uqb$5an$1@main.gmane.org...
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 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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