all_zero

rustc_middle::mir::interpret::allocation

Function all_zero 

Source 
fn all_zero(buf: &[u8]) -> bool
Expand description

Efficiently detect whether a slice of u8 is all zero.

This is used in encoding of Allocation to special-case all-zero allocations. It is only optimized a little, because for many allocations the encoding of the actual bytes does not dominate runtime.