Hello Rustaceans,please forgive my poor English. I want to ask: under what circumstances should inline be used? My humble opinion is that it makes sense when a function is called very frequently or when the function’s logic is very small (this can reduce the overhead and number of function calls).

Following this idea, when I was reading core/slice/rotate.rs, I noticed this function:

// FIXME(const-hack): Use cmp::min when available in const
const fn const_min(left: usize, right: usize) -> usize {
    if right < left { right } else { left }
}

It is called many times and is very small, but why isn’t it marked as inline?

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