Reads an object from a external pointer
qread_ptr(pointer, length, use_alt_rep=FALSE, strict=FALSE)An external pointer to memory
the length of the object in memory
Use alt rep when reading in string data. Default: FALSE. (Note: on R versions earlier than 3.5.0, this parameter does nothing.)
Whether to throw an error or just report a warning (Default: FALSE, report warning)
The de-serialized object