Random Numbers

There's a whole library dedicated to the generation and usage of random numbers.

C++ inherites the numeric functions from C and has a random number library.

Random numbers are necessary for many domains, e.g., to test software, to generate cryptographic keys or for computer games. The random number facility of C++ consists of two components. There is the generation of the random numbers, and there is the distribution of these random numbers. Both components need the header <random>.

Random number generator

The random number generator generates a random number stream between a minimum and maximum value. This stream is initialized by a “so-called” seed, guaranteeing different sequences of random numbers.

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