Struct rand::rngs::mock::StepRng[][src]

pub struct StepRng { /* fields omitted */ }
Expand description

A simple implementation of RngCore for testing purposes.

This generates an arithmetic sequence (i.e. adds a constant each step) over a u64 number, using wrapping arithmetic. If the increment is 0 the generator yields a constant.

use rand::Rng;
use rand::rngs::mock::StepRng;

let mut my_rng = StepRng::new(2, 1);
let sample: [u64; 3] = my_rng.gen();
assert_eq!(sample, [2, 3, 4]);

Implementations

Create a StepRng, yielding an arithmetic sequence starting with initial and incremented by increment each time.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Deserialize this value from the given Serde deserializer. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Return the next random u32. Read more

Return the next random u64. Read more

Fill dest with random data. Read more

Fill dest entirely with random data. Read more

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.