--- /dev/null
+//! Implements vertical (lane-wise) floating-point `ln`.
+
+macro_rules! impl_math_float_ln {
+ ([$elem_ty:ident; $elem_count:expr]: $id:ident | $test_tt:tt) => {
+ impl $id {
+ /// Returns the natural logarithm of `self`.
+ #[inline]
+ pub fn ln(self) -> Self {
+ use crate::codegen::math::float::ln::Ln;
+ Ln::ln(self)
+ }
+ }
+
+ test_if!{
+ $test_tt:
+ paste::item! {
+ pub mod [<$id _math_ln>] {
+ use super::*;
+ #[cfg_attr(not(target_arch = "wasm32"), test)] #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
+ fn ln() {
+ let z = $id::splat(0 as $elem_ty);
+ let o = $id::splat(1 as $elem_ty);
+ assert_eq!(z, o.ln());
+
+ let e = $id::splat(crate::f64::consts::E as $elem_ty);
+ let tol = $id::splat(2.4e-4 as $elem_ty);
+ assert!((o - e.ln()).abs().le(tol).all());
+ }
+ }
+ }
+ }
+ };
+}