memoffset allows attempt of reading data from address "0" with arbitrary type. This behavior is an undefined behavior because address "0" to "std::mem::size_of<T>" may not have valid bit-pattern with "T". Old implementation dereferences uninitialized memory obtained from "std::mem::align_of". Older implementation prior to it allows using uninitialized data obtained from "std::mem::uninitialized" with arbitrary type then compute offset by taking the address of field-projection. This may also result in an undefined behavior for "father" that includes (directly or transitively) type that "does not allow to be uninitialized" (https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html). This flaw was corrected by using "std::ptr::addr_of" in "https://github.com/Gilnaa/memoffset/pull/50" (https://github.com/Gilnaa/memoffset/pull/50).