Struct bitcoin::key::secp256k1::rand::distributions::uniform::UniformFloat
source · pub struct UniformFloat<X> { /* private fields */ }
Expand description
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 23 bits of
random digits for an f32
, and 52 for an f64
.
Trait Implementations§
source§impl<X> Clone for UniformFloat<X>where
X: Clone,
impl<X> Clone for UniformFloat<X>where X: Clone,
source§fn clone(&self) -> UniformFloat<X>
fn clone(&self) -> UniformFloat<X>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<X> Debug for UniformFloat<X>where
X: Debug,
impl<X> Debug for UniformFloat<X>where X: Debug,
source§impl<X> PartialEq<UniformFloat<X>> for UniformFloat<X>where
X: PartialEq<X>,
impl<X> PartialEq<UniformFloat<X>> for UniformFloat<X>where X: PartialEq<X>,
source§fn eq(&self, other: &UniformFloat<X>) -> bool
fn eq(&self, other: &UniformFloat<X>) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl UniformSampler for UniformFloat<f32>
impl UniformSampler for UniformFloat<f32>
source§fn new<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f32>where
B1: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
B2: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
fn new<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f32>where B1: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>, B2: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
Construct self, with inclusive lower bound and exclusive upper bound
[low, high)
. Read moresource§fn new_inclusive<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f32>where
B1: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
B2: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
fn new_inclusive<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f32>where B1: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>, B2: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
Construct self, with inclusive bounds
[low, high]
. Read moresource§fn sample<R>(&self, rng: &mut R) -> <UniformFloat<f32> as UniformSampler>::Xwhere
R: Rng + ?Sized,
fn sample<R>(&self, rng: &mut R) -> <UniformFloat<f32> as UniformSampler>::Xwhere R: Rng + ?Sized,
Sample a value.
source§fn sample_single<R, B1, B2>(
low_b: B1,
high_b: B2,
rng: &mut R
) -> <UniformFloat<f32> as UniformSampler>::Xwhere
R: Rng + ?Sized,
B1: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
B2: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
fn sample_single<R, B1, B2>( low_b: B1, high_b: B2, rng: &mut R ) -> <UniformFloat<f32> as UniformSampler>::Xwhere R: Rng + ?Sized, B1: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>, B2: SampleBorrow<<UniformFloat<f32> as UniformSampler>::X>,
Sample a single value uniformly from a range with inclusive lower bound
and exclusive upper bound
[low, high)
. Read moresource§fn sample_single_inclusive<R, B1, B2>(low: B1, high: B2, rng: &mut R) -> Self::Xwhere
R: Rng + ?Sized,
B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
fn sample_single_inclusive<R, B1, B2>(low: B1, high: B2, rng: &mut R) -> Self::Xwhere R: Rng + ?Sized, B1: SampleBorrow<Self::X>, B2: SampleBorrow<Self::X>,
Sample a single value uniformly from a range with inclusive lower bound
and inclusive upper bound
[low, high]
. Read moresource§impl UniformSampler for UniformFloat<f64>
impl UniformSampler for UniformFloat<f64>
source§fn new<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f64>where
B1: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
B2: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
fn new<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f64>where B1: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>, B2: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
Construct self, with inclusive lower bound and exclusive upper bound
[low, high)
. Read moresource§fn new_inclusive<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f64>where
B1: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
B2: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
fn new_inclusive<B1, B2>(low_b: B1, high_b: B2) -> UniformFloat<f64>where B1: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>, B2: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
Construct self, with inclusive bounds
[low, high]
. Read moresource§fn sample<R>(&self, rng: &mut R) -> <UniformFloat<f64> as UniformSampler>::Xwhere
R: Rng + ?Sized,
fn sample<R>(&self, rng: &mut R) -> <UniformFloat<f64> as UniformSampler>::Xwhere R: Rng + ?Sized,
Sample a value.
source§fn sample_single<R, B1, B2>(
low_b: B1,
high_b: B2,
rng: &mut R
) -> <UniformFloat<f64> as UniformSampler>::Xwhere
R: Rng + ?Sized,
B1: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
B2: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
fn sample_single<R, B1, B2>( low_b: B1, high_b: B2, rng: &mut R ) -> <UniformFloat<f64> as UniformSampler>::Xwhere R: Rng + ?Sized, B1: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>, B2: SampleBorrow<<UniformFloat<f64> as UniformSampler>::X>,
Sample a single value uniformly from a range with inclusive lower bound
and exclusive upper bound
[low, high)
. Read moresource§fn sample_single_inclusive<R, B1, B2>(low: B1, high: B2, rng: &mut R) -> Self::Xwhere
R: Rng + ?Sized,
B1: SampleBorrow<Self::X>,
B2: SampleBorrow<Self::X>,
fn sample_single_inclusive<R, B1, B2>(low: B1, high: B2, rng: &mut R) -> Self::Xwhere R: Rng + ?Sized, B1: SampleBorrow<Self::X>, B2: SampleBorrow<Self::X>,
Sample a single value uniformly from a range with inclusive lower bound
and inclusive upper bound
[low, high]
. Read moreimpl<X> Copy for UniformFloat<X>where X: Copy,
impl<X> StructuralPartialEq for UniformFloat<X>
Auto Trait Implementations§
impl<X> RefUnwindSafe for UniformFloat<X>where X: RefUnwindSafe,
impl<X> Send for UniformFloat<X>where X: Send,
impl<X> Sync for UniformFloat<X>where X: Sync,
impl<X> Unpin for UniformFloat<X>where X: Unpin,
impl<X> UnwindSafe for UniformFloat<X>where X: UnwindSafe,
Blanket Implementations§
§impl<T> Conv for T
impl<T> Conv for T
§impl<T> FmtForward for T
impl<T> FmtForward for T
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Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self>where Self: Binary,
Causes
self
to use its Binary
implementation when Debug
-formatted.§fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self>where Self: Display,
Causes
self
to use its Display
implementation when
Debug
-formatted.§fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self>where Self: LowerExp,
Causes
self
to use its LowerExp
implementation when
Debug
-formatted.§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self>where Self: LowerHex,
Causes
self
to use its LowerHex
implementation when
Debug
-formatted.§fn fmt_octal(self) -> FmtOctal<Self>where
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-formatted.§fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
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Causes
self
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Debug
-formatted.§fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self>where Self: UpperExp,
Causes
self
to use its UpperExp
implementation when
Debug
-formatted.§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where Self: UpperHex,
Causes
self
to use its UpperHex
implementation when
Debug
-formatted.§fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
fn fmt_list(self) -> FmtList<Self>where &'a Self: for<'a> IntoIterator,
Formats each item in a sequence. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
§impl<T> Pipe for Twhere
T: ?Sized,
impl<T> Pipe for Twhere T: ?Sized,
§fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere Self: Sized,
Pipes by value. This is generally the method you want to use. Read more
§fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere R: 'a,
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