Use the FromPrimitive
trait:
use num_traits::{cast::FromPrimitive, float::Float};
fn scale_float<T: Float + FromPrimitive>(x: T) -> T {
x * T::from_f64(0.54).unwrap()
}
Or the standard library From
/ Into
traits
fn scale_float<T>(x: T) -> T
where
T: Float,
f64: Into<T>
{
x * 0.54.into()
}
See also: