Function ptr_offset_from 

pub const unsafe fn ptr_offset_from<T>(ptr: *const T, base: *const T) -> isize

🔬This is a nightly-only experimental API. (core_intrinsics)

This item is validated for IEC 61508 (SIL 2) and ISO 26262 (ASIL B).

See documentation of <*const T>::offset_from for details.