Question

What are Engine Adaptors?

(a) Class template that adopts a pseudo-random number generator engine

(b) Class template that adopts a pseudo-random number generator engine to produce numbers with a given numbers of bits

(c) Random number engine that generates pseudo-random numbers

(d) Mersenne Twister 19937 generator generating 32-bit true random number

The question was posed to me in an interview for job.

This is a very interesting question from Generators in section Class Hierarchies, Library & Containers of C++

Answer 1

Right answer is (b) Class template that adopts a pseudo-random number generator engine to produce numbers with a given numbers of bits

Easy explanation - Engine adaptor is a class template that adapts a pseudo-random number generator to produce random number having a specific number of bits.