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Tip of the Day
Language: C++
Expertise: Intermediate
Aug 7, 1998



Application Security Testing: An Integral Part of DevOps

Use Multiple Inheritance to Conjoin Features

Derived classes can combine functionality of several base classes simultaneously, by means of multiple inheritance. Trying to achieve the same effect by using single inheritance can be very difficult, to say the least:
class Persistent { //abstract base class used by all persistence-supporting objects
	virtual void WriteObject(void *pobj, size_t sz) = 0;
	virtual void* ReadObject(Archive & ar) = 0;
class Date {/*...*/};
class PersistentDate: public Date, public Persistent { /*..*/} //can be stored and retrieved 
Danny Kalev
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