Function is_equal

pub fn is_equal(x: &[u8], y: &[u8]) -> bool

Compare corresponding bytes in x and y for equality.

That is, this returns true if and only if x.len() == y.len() and x[i] == y[i] for all 0 <= i < x.len().

Inlining

This routine is marked inline(always). If you want to call this function in a way that is not always inlined, you’ll need to wrap a call to it in another function that is marked as inline(never) or just inline.

Motivation

Why not use slice equality instead? Well, slice equality usually results in a call out to the current platform’s libc which might not be inlineable or have other overhead. This routine isn’t guaranteed to be a win, but it might be in some cases.