Modifying static member variable via a ctor in a DLL

[vincent ngai]

Hi folks, I have the following scenario

Lib X
[
class A
{
A(){ B<A>::foobar=666;
}

template<> class B
{
statc int foobar;
}
]

A lib with 1 class and 1 template class with a static var, the ctor of the
class initialises the templated class's var.
This works if Lib X has static linkage but fubars entirely with dynamic
linkage. I'm guessing its a memory space issue
because tracing the address &foobar shows a different value when its
executing the ctor and when its in the main().
Could someone explain or point me to an explaination of how the ctor
executing in dll changes a different static var?

I'm basically trying to get automatic class registering via a static proxy
ala OSG plugin style. All my dynamically
registered classes would be derived from a base class....say Component. And
I would have another class that
contains a vector of Component* so that the behaviour of this container
class can change during runtime by reading
class id's off a txt file etc...And I won't have to know what kind of
component the container contains because they
are from the same base type. There are other ways to get this to work....but
this requires minimal programmer code
when writing new classes and I thought it's cool


Thanks

 

[David White]

[snip]

Could someone explain or point me to an explaination of how the ctor
executing in dll changes a different static var?

This question is platform-specific, and as such is off-topic here. This
might point you in the right direction:
http://www.slack.net/~shiva/welcome.txt

DW