# NAME

Random::Simple - Generate good random numbers in a user consumable way.

# SYNOPSIS

    use Random::Simple;

    my $coin_flip      = random_int(1, 2);
    my $die_roll       = random_int(1, 6);
    my $random_percent = random_float() * 100;
    my $buffer         = random_bytes(8);

    my @arr        = ('red', 'green', 'blue');
    my $rand_item  = $arr[random_int(0, @arr - 1)]; # Random array item

# DESCRIPTION

Perl's internal `rand()` function uses `drand48` which is an older
pseudorandom number generator and may have limitations. `Random::Simple` uses
PCG which is: modern, simple, well vetted, and fast. Using `Random::Simple`
will automatically upgrade/override the core `rand()` function to use a
better PRNG.

`Random::Simple` is automatically seeded with entropy directly
from your OS. On Linux this is `/dev/urandom` and on Windows it uses
CryptGenRandom. You will get statistically unique random numbers
automatically.

# METHODS

- **random\_int($min, $max)**

    returns a non-biased integer between `$min` and `$max` (inclusive). Range must be no larger than 2\*\*32 - 2.

- **random\_float()**

    returns a random floating point value between 0 and 1 (inclusive).

- **random\_bytes($number)**

    returns a string of random bytes with length of `$number`.

- **rand()**

    emulates `CORE::rand()` using a better PRNG.

# BUGS

Submit issues on Github: [https://github.com/scottchiefbaker/perl-Random-Simple/issues](https://github.com/scottchiefbaker/perl-Random-Simple/issues)

# SEE ALSO

- [Math::Random::PCG32](https://metacpan.org/pod/Math%3A%3ARandom%3A%3APCG32)
- [Math::Random::ISAAC](https://metacpan.org/pod/Math%3A%3ARandom%3A%3AISAAC)
- [Math::Random::MT](https://metacpan.org/pod/Math%3A%3ARandom%3A%3AMT)
- [Math::Random::Secure](https://metacpan.org/pod/Math%3A%3ARandom%3A%3ASecure)

# AUTHOR

Scott Baker - [https://www.perturb.org/](https://www.perturb.org/)