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What is random_device in C++?

std::random_device on the other hand is the first attempt to introduce actual random number generator in C++ standard library. A random_device uniform random bit generator produces nondeterministic random numbers. If implementation limitations prevent generating nondeterministic random numbers, the implementation may employ a random number engine.

Is there such a thing as a pseudo-random number?

While the meaningful notion of "random number" exists (kind of) - there is no such thing as "pseudo-random number". A Pseudo-Random Number Generator actually produces pseudo-random number sequence.

What is RAND_MAX in C++?

RAND_MAX is a constant defined in . Notice though that this modulo operation does not generate uniformly distributed random numbers in the span (since in most cases this operation makes lower numbers slightly more likely). C++ supports a wide range of powerful tools to generate random and pseudo-random numbers (see for more info).

Is random> a C++ library?

Currently this example uses the C random library functions and "There are no guarantees as to the quality of the random sequence produced". The c++ library violates one of the best principles of software engineering: "Simple things done simple, complex, uncommon things can be a bit more complex."

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