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What are functors in C++?

A. Objects of a class which are treated as functions

B. Objects that are used to call the function of other classes

C. Functions that are called using pointer objects

D. Functions that are called only once in a program

Answer: Option A


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Related Questions on C plus plus miscellaneous

What is the difference between '++i' and 'i++' in C++?

A. None of the above

B. They both have the same effect

C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it

D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it