pub fn zeroize_slice<T: Copy + Default>(slice: &mut [T])Expand description
Overwrites every element of slice with its Default value.
Uses ptr::write_volatile so the compiler cannot prove the writes are dead
and elide them (which it would be allowed to do for ordinary assignments to
memory that is about to go out of scope). The compiler_fence prevents
reordering the volatile stores with subsequent deallocation or reuse of the
backing memory.
Called by Drop implementations and new_wiping constructors to ensure
expanded round keys do not linger in memory.