Method erase

src/fl/stl/unordered_map_small.h:340–348

Erase — clears occupied bit, iterator stable

    // Erase — clears occupied bit, iterator stable
    iterator erase(iterator pos) FL_NOEXCEPT {
        if (pos.mMap != this || pos.mIdx >= mData.size()) return end();
        if (!mOccupied.test(pos.mIdx)) return end(); // already erased
        mOccupied.reset(pos.mIdx);
        --mSize;
        // Advance to next occupied slot
        iterator next(this, pos.mIdx + 1);
        return next;
    }

    iterator erase(const_iterator pos) FL_NOEXCEPT {
        iterator it(this, pos.mIdx);