pub fn fmaf64(a: f64, b: f64, c: f64) -> f64;
/// Returns the absolute value of an `f32`.
///
/// The stabilized version of this intrinsic is
pub fn fmaf64(a: f64, b: f64, c: f64) -> f64;
/// Returns the absolute value of an `f32`.
///
/// The stabilized version of this intrinsic is