Pure virtual called

[lakehanne]

I am running the following [program](https://gist.github.com/lakehanne/b601f96c07d1b02ede2c) and everytime I compile my cmake and try to execute the complied object, I run into

>pure virtual method called
terminate called without an active exception
Aborted (core dumped)

Please help!

[coder777]

That could be an unhandled exception.

Try to find out the last executed line (if necessary with debug couts) and create a try/catch block to get the error message.