How about RTTI with pure interface and different dll?

[s51563946]

If I have a pure interface class in a header file, and two function in different dll use type_id to get a const type_info& reference in one process. The two of them is the same one or different. How about on different platform and compiler, how about mscv with dll and g++ with so?

[kbw]

Assume they're different. Certainly the names are going to be different. Implementations can define any old junk in any way they choose. Don't use type_id as unique identifiers for classes beyond the bounds of the program runtime environment.

[jsmith]

Don't even use type_id beyond the module in which the type is declared.

For example, if the type is in a DLL, don't use type_id on that type in an application that uses the DLL.