Enum uom::ConstantOp

pub enum ConstantOp {
    Add,
    Sub,
}

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

Variants

Add

Hint that the constant is being added to a value.

Sub

Hint that the constant is being subtracted from a value.

Trait Implementations

impl Copy for ConstantOp

impl Clone for ConstantOp

fn clone(&self) -> ConstantOp

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ConstantOp

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

Formats the value using the given formatter.