What's the difference between these two?

[stiff pumice]

So I have seen multiple random libraries, mainly <cstdlib> and <random>. I know <random> is probably a lot better, but I just wanted to understand what both offer, and perhaps if there are even more libraries for randomness.

[abstract drift]

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[crude stirrup]

The one from <cstdlib> is an ancient and bad implementation.

The one from <random> offers a selection of more properly implemented generators.

[stiff pumice]

I see