Method erase

src/fl/stl/deque.h:642–661

Erase operations

    // Erase operations
    iterator erase(const_iterator pos) {
        if (pos == end()) return end();

        fl::size index = pos.mIndex;

        // Destroy element at pos
        fl::size erase_idx = get_index(index);
        mData[erase_idx].~T();

        // Shift elements from pos+1 to end one position to the left
        for (fl::size i = index; i < mSize - 1; ++i) {
            fl::size from_idx = get_index(i + 1);
            fl::size to_idx = get_index(i);
            new (&mData[to_idx]) T(fl::move(mData[from_idx]));
            mData[from_idx].~T();
        }

        --mSize;
        return iterator(this, index);
    }

    iterator erase(const_iterator first, const_iterator last) {
        if (first == last) return iterator(this, first.mIndex);