Macro xorshift_custom

macro_rules! xorshift_custom {
    (bits:$bits:literal, basis:$basis:expr, triplet:$triplet:expr, seed:$seed:expr) => { ... };
}

Available on crate feature rand only.

Constructs a XorShift prng with custom bits, basis, triplet and seed.

It can construct custom instances of XorShift16, XorShift32 and XorShift64.

The given $triplet is an index for an array of good triples with a maximum of:

• 3 for 16-bit,
• 80 for 32-bit
• 274 for 64-bit

Usage:

xorshift_with![bits: 32, basis: 1, triplet: 40, seed: 5334];

Valid argument values:

• $bits: 16, 32 or 64.
• $basis: in range 0..=7.
• $triplet: 0..=3 for 16-bit; 0..=80 for 32-bit; 0..=274 for 64-bit.
• $seed: any value. If 0 is given the default seed will be used.

Panics

If the $basis is outside range 0..=7.