Method reserve

src/hist.rs:224–227

(&mut self, entries: usize)

    }

    fn reserve(&mut self, entries: usize) {
        let new_entries = entries.saturating_sub(self.hashmap.len() / 3); // assume some will be dupes, if called multiple times
        self.hashmap.reserve(new_entries);
    }

    #[inline(always)]
    const fn posterize_mask(&self) -> u32 {