Method insert

src/entity/small_set.rs:123–126

(&mut self, entity: T)

    /// Inserts an element into the set.
    #[inline]
    pub fn insert(&mut self, entity: T) {
        let idx = Self::index(entity);
        self.storage[idx / W::BITS] |= W::bit(idx % W::BITS);
    }

    /// Removes an element from the set.
    #[inline]