Function std::f32::copysign
pub fn copysign(x: f32, y: f32) -> f32
pub fn copysign(x: f32, y: f32) -> f32
Prefix searches with a type followed by a colon (e.g.
fn:) to restrict the search to a given type.
Accepted types are: fn, mod,
struct (or str), enum,
trait, typedef (or
tdef).