diff options
Diffstat (limited to 'third_party/rust/packed_simd/src/api/math/float/exp.rs')
-rw-r--r-- | third_party/rust/packed_simd/src/api/math/float/exp.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/rust/packed_simd/src/api/math/float/exp.rs b/third_party/rust/packed_simd/src/api/math/float/exp.rs new file mode 100644 index 0000000000..e3356d853a --- /dev/null +++ b/third_party/rust/packed_simd/src/api/math/float/exp.rs @@ -0,0 +1,33 @@ +//! Implements vertical (lane-wise) floating-point `exp`. + +macro_rules! impl_math_float_exp { + ([$elem_ty:ident; $elem_count:expr]: $id:ident | $test_tt:tt) => { + impl $id { + /// Returns the exponential function of `self`: `e^(self)`. + #[inline] + pub fn exp(self) -> Self { + use crate::codegen::math::float::exp::Exp; + Exp::exp(self) + } + } + + test_if!{ + $test_tt: + paste::item! { + pub mod [<$id _math_exp>] { + use super::*; + #[cfg_attr(not(target_arch = "wasm32"), test)] #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] + fn exp() { + let z = $id::splat(0 as $elem_ty); + let o = $id::splat(1 as $elem_ty); + assert_eq!(o, z.exp()); + + let e = $id::splat(crate::f64::consts::E as $elem_ty); + let tol = $id::splat(2.4e-4 as $elem_ty); + assert!((e - o.exp()).abs().le(tol).all()); + } + } + } + } + }; +} |