memchr 2.6.4

Provides extremely fast (uses SIMD on x86_64, aarch64 and wasm32) routines for 1, 2 or 3 byte search and single substring search.
Documentation 
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// Some feature combinations result in some of these macros never being used.
// Which is fine. Just squash the warnings.
#![allow(unused_macros)]

macro_rules! log {
    ($($tt:tt)*) => {
        #[cfg(feature = "logging")]
        {
            $($tt)*
        }
    }
}

macro_rules! debug {
    ($($tt:tt)*) => { log!(log::debug!($($tt)*)) }
}

macro_rules! trace {
    ($($tt:tt)*) => { log!(log::trace!($($tt)*)) }
}