Function vext_u64 

pub unsafe fn vext_u64(
    a: uint64x1_t,
    _b: uint64x1_t,
    const N: i32,
) -> uint64x1_t

Available on target feature neon and (AArch64 or ARM or ARM64EC) and (AArch64 or ARM64EC) and (AArch64 or ARM64EC or target feature v7) only.

Extract vector from pair of vectors Arm’s documentation

Safety

• Neon intrinsic unsafe