module Random::System

Overview

Generates random numbers from a secure source of the system.

For example arc4random is used on OpenBSD, whereas on Linux it uses getrandom (if the kernel supports it) and fallbacks on reading from /dev/urandom on UNIX systems.

Random::System.rand(6)            # => 4
[1, 5, 6].shuffle(Random::System) # => [6, 1, 5]

Extended Modules

• Random
• Random::System

Defined in:

random/system.cr

Instance Method Summary

• #next_u

Instance Method Detail