Struct rand_distr::Open01
source · pub struct Open01;
Expand description
A distribution to sample floating point numbers uniformly in the open
interval (0, 1)
, i.e. not including either endpoint.
All values that can be generated are of the form n * ε + ε/2
. For f32
the 23 most significant random bits of an u32
are used, for f64
52 from
an u64
. The conversion uses a transmute-based method.
See also: Standard
which samples from [0, 1)
, OpenClosed01
which samples from (0, 1]
and Uniform
which samples from arbitrary
ranges.
Example
use rand::{thread_rng, Rng};
use rand::distributions::Open01;
let val: f32 = thread_rng().sample(Open01);
println!("f32 from (0, 1): {}", val);
Trait Implementations§
source§impl<'de> Deserialize<'de> for Open01
impl<'de> Deserialize<'de> for Open01
source§fn deserialize<__D>(
__deserializer: __D
) -> Result<Open01, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D
) -> Result<Open01, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl Distribution<f32> for Open01
impl Distribution<f32> for Open01
source§fn sample<R>(&self, rng: &mut R) -> f32where
R: Rng + ?Sized,
fn sample<R>(&self, rng: &mut R) -> f32where
R: Rng + ?Sized,
Generate a random value of
T
, using rng
as the source of randomness.source§impl Distribution<f64> for Open01
impl Distribution<f64> for Open01
source§fn sample<R>(&self, rng: &mut R) -> f64where
R: Rng + ?Sized,
fn sample<R>(&self, rng: &mut R) -> f64where
R: Rng + ?Sized,
Generate a random value of
T
, using rng
as the source of randomness.source§impl Serialize for Open01
impl Serialize for Open01
source§fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
Serialize this value into the given Serde serializer. Read more