const C2: f64 = -0.00138867637746099294692; /* -0x16c087e80f1e27.0p-62 */
const C3: f64 = 0.0000243904487962774090654; /* 0x199342e0ee5069.0p-68 */
-#[inline]
#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
-pub fn k_cosf(x: f64) -> f32 {
+pub(crate) fn k_cosf(x: f64) -> f32 {
let z = x * x;
let w = z * z;
let r = C2 + z * C3;