From: [email protected] <[email protected]>
Subject: Packet::copy() issue with ns2.33
To: "ns-users" <[email protected]>
Date: Monday, 1 June, 2009, 1:22 PM
Hi,
I am writing a new protocol in NS2 and using application level data packets
by extending AppData. So I have class ABC:: public AppData and class
PQR::public ABC. I have defined the size() and copy() methods for both, and
also defined the constants in packet.h in enum AppDataType.
Now, when I run the simulation, I get an error that says...
-----------------------------------------------------------------------
pure virtual method called
terminate called without an active exception
-----------------------------------------------------------------------
Upon debugging, I found out that this error comes when it executes
Packet::copy(), specifically the statement
p->data_ = data_-> copy()
here, data_->copy() happens to be a pure virtual function, which is why I am
getting the error, but I am wondering what is the cause.. I have defined the
proper copy() functions for new AppData types...
It would be great if someone points me out my mistake.. If someone wants more
information about my code, I would be happy to share it ...
thank you,
regards,
Swaroop
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