iterator erase()

in dispenso/concurrent_vector.h [559:579]

• 18 lines of code
• 4 McCabe index (conditional complexity)

  iterator erase(const_iterator first, const_iterator last) {
    size_t len = std::distance(first, last);
    auto it = begin();
    size_t startIdx = first - it;
    if (len == 0) {
      return it + (startIdx + len);
    }
    it += startIdx;

    auto e_it = std::move(last, cend(), it);

    if (e_it < last) {
      // remove any values that were not already moved into
      do {
        --last;
        last->~T();
      } while (e_it != last);
    }
    size_.fetch_sub(len, std::memory_order_relaxed);
    return e_it;
  }