What is a standard random number generator?

std::default_random_engine generator; std::uniform_int_distribution distribution (1,6); int dice_roll = distribution (generator); Except for random_device, all standard generators defined in the library are random number engines, which are a kind of generators that use a particular algorithm to generate series of pseudo-random numbers.

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 are random numbers used for?

The traditional use of random numbers is for adding them for game development. You can find random number generators in games involving dice, coins, or cards. It is possible to generate random quotes, jokes, or other content on websites by using the random number generators. Random numbers are often used in cryptography and cybersecurity.

Can I use random_device in cross-platform code?

Because the ISO C++ Standard does not require this, other platforms may implement random_device as a simple pseudo-random number generator (not cryptographically secure) and may only be suitable as a seed source for another generator. Check the documentation for those platforms when using random_device in cross-platform code.