Struct rand::distributions::uniform::UniformFloat[][src]

pub struct UniformFloat<X> { /* fields omitted */ }

The back-end implementing UniformSampler for floating-point types.

Unless you are implementing UniformSampler for your own type, this type should not be used directly, use Uniform instead.

Implementation notes

Instead of generating a float in the [0, 1) range using Standard, the UniformFloat implementation converts the output of an PRNG itself. This way one or two steps can be optimized out.

The floats are first converted to a value in the [1, 2) interval using a transmute-based method, and then mapped to the expected range with a multiply and addition. Values produced this way have what equals 22 bits of random digits for an f32, and 52 for an f64.

Currently there is no difference between new and new_inclusive, because the boundaries of a floats range are a bit of a fuzzy concept due to rounding errors.

Trait Implementations

impl<X: Clone> Clone for UniformFloat<X>
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<X: Copy> Copy for UniformFloat<X>
[src]

impl<X: Debug> Debug for UniformFloat<X>
[src]

Formats the value using the given formatter. Read more

impl UniformSampler for UniformFloat<f32>
[src]

The type sampled by this implementation.

Construct self, with inclusive lower bound and exclusive upper bound [low, high). Read more

Construct self, with inclusive bounds [low, high]. Read more

Sample a value.

Sample a single value uniformly from a range with inclusive lower bound and exclusive upper bound [low, high). Read more

impl UniformSampler for UniformFloat<f64>
[src]

The type sampled by this implementation.

Construct self, with inclusive lower bound and exclusive upper bound [low, high). Read more

Construct self, with inclusive bounds [low, high]. Read more

Sample a value.

Sample a single value uniformly from a range with inclusive lower bound and exclusive upper bound [low, high). Read more

Auto Trait Implementations

impl<X> Send for UniformFloat<X> where
    X: Send

impl<X> Sync for UniformFloat<X> where
    X: Sync