Working With Uninitialized Memory

All runtime-allocated memory in a Rust program begins its life asuninitialized. In this state the value of the memory is an indeterminate pileof bits that may or may not even reflect a valid state for the type that issupposed to inhabit that location of memory. Attempting to interpret this memoryas a value of any type will cause Undefined Behavior. Do Not Do This.

Rust provides mechanisms to work with uninitialized memory in checked (safe) andunchecked (unsafe) ways.