# [−][src]Struct proptest::option::Probability

A probability in the range `[0.0, 1.0]`

with a default of `0.5`

.

## Methods

`impl Probability`

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`pub fn new(prob: f64) -> Self`

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`pub fn with<X>(self, and: X) -> (Self, X)`

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Merges self together with some other argument producing a product
type expected by some impelementations of `A: Arbitrary`

in
`A::Parameters`

. This can be more ergonomic to work with and may
help type inference.

`pub fn lift<X: Default>(self) -> (Self, X)`

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Merges self together with some other argument generated with a
default value producing a product type expected by some
impelementations of `A: Arbitrary`

in `A::Parameters`

.
This can be more ergonomic to work with and may help type inference.

## Trait Implementations

`impl Arbitrary for Probability`

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`type Parameters = ()`

The type of parameters that [`arbitrary_with`

] accepts for configuration of the generated [`Strategy`

]. Parameters must implement [`Default`

]. Read more

`type Strategy = MapInto<RangeInclusive<f64>, Self>`

The type of [`Strategy`

] used to generate values of type `Self`

. Read more

`fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy`

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`fn arbitrary() -> Self::Strategy`

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Generates a [`Strategy`

] for producing arbitrary values of type the implementing type (`Self`

). Read more

`impl Copy for Probability`

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`impl Debug for Probability`

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`impl PartialEq<Probability> for Probability`

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`fn eq(&self, other: &Probability) -> bool`

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`fn ne(&self, other: &Probability) -> bool`

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`impl From<f64> for Probability`

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`impl From<Probability> for f64`

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`fn from(p: Probability) -> Self`

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`impl Clone for Probability`

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`fn clone(&self) -> Probability`

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`fn clone_from(&mut self, source: &Self)`

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Performs copy-assignment from `source`

. Read more

`impl Default for Probability`

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## Auto Trait Implementations

`impl Send for Probability`

`impl Sync for Probability`

## Blanket Implementations

`impl<T, U> TryFrom for T where`

U: Into<T>,

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U: Into<T>,

`type Error = Infallible`

The type returned in the event of a conversion error.

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`

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`impl<T> From for T`

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`impl<T, U> TryInto for T where`

U: TryFrom<T>,

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U: TryFrom<T>,

`type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`

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`impl<T, U> Into for T where`

U: From<T>,

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U: From<T>,

`impl<T> Borrow for T where`

T: ?Sized,

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T: ?Sized,

`impl<T> BorrowMut for T where`

T: ?Sized,

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T: ?Sized,

`fn borrow_mut(&mut self) -> &mut T`

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`impl<T> Any for T where`

T: 'static + ?Sized,

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T: 'static + ?Sized,

`impl<T> ToOwned for T where`

T: Clone,

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T: Clone,