rust/crates/core_simd/tests/helpers/lanewise.rs
Caleb Zulawski 43dabd1aea
Implement core::ops (#10)
* Add vector-vector arithmetic ops
* Add operators and integer conversions for masks
* Add unary traits
* Implement Index and IndexMut
* Implement by-ref ops for masks
* Document intrinsics
* Implement format traits for masks
* Add floating point ops tests
* Add integer tests
* Add mask tests
2020-10-01 19:50:15 -07:00

50 lines
1.2 KiB
Rust

pub fn apply_unary_lanewise<T: Copy, V: AsMut<[T]> + Default>(mut x: V, f: impl Fn(T) -> T) -> V {
for lane in x.as_mut() {
*lane = f(*lane)
}
x
}
pub fn apply_binary_lanewise<T: Copy, V: AsRef<[T]> + AsMut<[T]> + Default>(
a: V,
b: V,
f: impl Fn(T, T) -> T,
) -> V {
let mut out = V::default();
let out_slice = out.as_mut();
let a_slice = a.as_ref();
let b_slice = b.as_ref();
for (o, (a, b)) in out_slice.iter_mut().zip(a_slice.iter().zip(b_slice.iter())) {
*o = f(*a, *b);
}
out
}
pub fn apply_binary_scalar_rhs_lanewise<T: Copy, V: AsRef<[T]> + AsMut<[T]> + Default>(
a: V,
b: T,
f: impl Fn(T, T) -> T,
) -> V {
let mut out = V::default();
let out_slice = out.as_mut();
let a_slice = a.as_ref();
for (o, a) in out_slice.iter_mut().zip(a_slice.iter()) {
*o = f(*a, b);
}
out
}
pub fn apply_binary_scalar_lhs_lanewise<T: Copy, V: AsRef<[T]> + AsMut<[T]> + Default>(
a: T,
b: V,
f: impl Fn(T, T) -> T,
) -> V {
let mut out = V::default();
let out_slice = out.as_mut();
let b_slice = b.as_ref();
for (o, b) in out_slice.iter_mut().zip(b_slice.iter()) {
*o = f(a, *b);
}
out
}