Trait solana_evm_loader_program::scope::evm::secp256k1::rand::distributions::uniform::UniformSampler [−][src]
Helper trait handling actual uniform sampling.
See the module documentation on how to implement Uniform
range
sampling for a custom type.
Implementation of sample_single
is optional, and is only useful when
the implementation can be faster than Self::new(low, high).sample(rng)
.
Associated Types
Required methods
pub fn new<B1, B2>(low: B1, high: B2) -> Self where
B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
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B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
Construct self, with inclusive lower bound and exclusive upper bound
[low, high)
.
Usually users should not call this directly but instead use
Uniform::new
, which asserts that low < high
before calling this.
pub fn new_inclusive<B1, B2>(low: B1, high: B2) -> Self where
B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
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B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
Construct self, with inclusive bounds [low, high]
.
Usually users should not call this directly but instead use
Uniform::new_inclusive
, which asserts that low <= high
before
calling this.
pub fn sample<R>(&self, rng: &mut R) -> Self::X where
R: Rng + ?Sized,
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R: Rng + ?Sized,
Sample a value.
Provided methods
pub fn sample_single<R, B1, B2>(low: B1, high: B2, rng: &mut R) -> Self::X where
R: Rng + ?Sized,
B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
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R: Rng + ?Sized,
B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
Sample a single value uniformly from a range with inclusive lower bound
and exclusive upper bound [low, high)
.
Usually users should not call this directly but instead use
Uniform::sample_single
, which asserts that low < high
before calling
this.
Via this method, implementations can provide a method optimized for
sampling only a single value from the specified range. The default
implementation simply calls UniformSampler::new
then sample
on the
result.