Crate likely_polyfill 

As a workaround to their stabilization in the standard library remaining perma-open, this crate provides the cold_path, likely, and unlikely hints built on the #[cold] annotation as copied and pasted from the standard library source.

Functions

cold_path

Hints to the compiler that current code path is cold.

likely

Hints to the compiler that branch condition is likely to be true. Returns the value passed to it.

unlikely

Hints to the compiler that branch condition is likely to be false. Returns the value passed to it.