#[non_exhaustive]
pub enum SignDisplay { Auto, Never, Always, ExceptZero, Negative, }
Expand description

Configuration for when to render the minus sign or plus sign.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Auto

Render the sign according to locale preferences. In most cases, this means a minus sign will be shown on negative numbers, and no sign will be shown on positive numbers.

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Never

Do not display the sign. Positive and negative numbers are indistinguishable.

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Always

Show a minus sign on negative numbers and a plus sign on positive numbers, including zero.

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ExceptZero

Show a minus sign on negative numbers and a plus sign on positive numbers, except do not show any sign on positive or negative zero.

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Negative

Show a minus sign on strictly negative numbers. Do not show a sign on positive numbers or on positive or negative zero.

This differs from Auto in that it does not render a sign on negative zero.

Trait Implementations§

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impl Clone for SignDisplay

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fn clone(&self) -> SignDisplay

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SignDisplay

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for SignDisplay

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for SignDisplay

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impl Eq for SignDisplay

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impl StructuralEq for SignDisplay

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impl StructuralPartialEq for SignDisplay

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.