Enum uom::ConstantOp

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pub enum ConstantOp {
    Add,
    Sub,
}
Expand description

Operations performed on the constant portion of the conversion factor. Used to help guide optimizations when floating point underlying storage types are used.

For a value, v: Float, adding -0.0 is a no-op while adding 0.0 will change the sign if v is -0.0. The opposite is true for subtraction.

   v
 0.0 + -0.0 =  0.0
-0.0 +  0.0 =  0.0 // v +  0.0 != v
-0.0 + -0.0 = -0.0
 0.0 - -0.0 =  0.0
-0.0 -  0.0 =  0.0
-0.0 - -0.0 =  0.0 // v - -0.0 != v

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Add

Hint that the constant is being added to a value.

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Sub

Hint that the constant is being subtracted from a value.

Trait Implementations§

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impl Clone for ConstantOp

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fn clone(&self) -> ConstantOp

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 ConstantOp

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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 Copy for ConstantOp

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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> Same for T

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type Output = T

Should always be Self
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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.