pub fn erased_map_into_uninit(
input_dtype: KernelDType,
op: ErasedMapOp,
ctx: &ExecContext,
dest: &mut ErasedRawStridedUninitMut<'_>,
input: &ErasedRawStridedPtr<'_>,
) -> Result<()>Expand description
Apply one runtime-selected unary operation into uninitialized storage.
The dtype contract matches erased_map_into:
complex absolute value writes c32 -> f32 and c64 -> f64, bool
supports only ErasedMapOp::Conj, and signed integers use wrapping
negate/abs.
§Examples
use core::mem::MaybeUninit;
use strided_kernel::{
erased_map_into_uninit, ErasedMapOp, ErasedRawStridedPtr, ErasedRawStridedRef,
ErasedRawStridedUninitMut, ExecContext, KernelDType,
};
let input = [-1.5_f64, 2.0];
let input = ErasedRawStridedRef::from_slice(&input, &[2], &[1], 0).unwrap();
let mut out = [MaybeUninit::<f64>::uninit(); 2];
let mut dest = ErasedRawStridedUninitMut::from_uninit_slice(&mut out, &[2], &[1], 0).unwrap();
erased_map_into_uninit(
KernelDType::F64,
ErasedMapOp::Abs,
&ExecContext::serial(),
&mut dest,
&ErasedRawStridedPtr::from_ref(&input),
)
.unwrap();
// SAFETY: a successful call initializes every reachable element.
assert_eq!(unsafe { [out[0].assume_init(), out[1].assume_init()] }, [1.5, 2.0]);§Errors
Returns a typed StridedError for dtype, shape, output-layout, overlap,
or unsupported dtype/op contracts. Validation completes before any write.