create virtual destructors for topology elements

guruofquality / gras

GRAS: The GNU Radio Advanced Scheduler

https://github.com/guruofquality/gras/wiki

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Closed guruofquality closed 11 years ago

guruofquality commented 11 years ago

guruofquality commented 11 years ago

test apps segfault when Element has a virtual destructor -- why/is it related to inheriting from shared from this?