Module util 

Shared helpers (permutation inversion, multi-index iteration, dimension fusion). Shared helpers for strided-einsum2.

Structs

MultiIndex

Iterator over multi-dimensional index tuples within given dimensions.

Functions

invert_perm

Invert a permutation: if perm[i] = j, then result[j] = i.

try_fuse_group

Try to fuse a contiguous dimension group into a single (total_size, innermost_stride).