/// Sign of Y, magnitude of X (f32)

///

/// Constructs a number with the magnitude (absolute value) of its

/// first argument, `x`, and the sign of its second argument, `y`.

#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]

pub fn copysignf(x: f32, y: f32) -> f32 {

    let mut ux = x.to_bits();

    let uy = y.to_bits();

    ux &= 0x7fffffff;

    ux |= uy & 0x80000000;

    f32::from_bits(ux)

}