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echo: os2prog
to: Keith Bennett
from: Mario Semo
date: 1994-12-30 10:42:40
subject: Static class data members in both DLL & EXE?

Hello Keith,

On Dec 27 17:37 94, Keith Bennett of 1:109/347 wrote:


 KB> Source code used to create both the .DLL and the .EXE use a common class 
 KB> named LOGBASE located in LOGBASE.HPP and LOGBASE.CPP.  LOGBASE has a 
 KB> static data member.  When I tried creating the .DLL without linking 
 KB> LOGBASE.OBJ, the linker complained that the static data member was an 
 KB> unresolved external.  I included the object file and it linked fine.

WHERE is the class logbase implemented? do you have the class in the dll
and you want to export the class? then you must have the static data member
also in the DLL (of course). 
if you duplicate the CLASS code (in the EXE and in the DLL) then you
implement 2 different classes (with the same name, but 2 classes. there is
a different name scope for the EXE and the DLL). then of course you have 2
different static data members.

 WARPED!, Mario

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