DISPENSO_INLINE cv::BucketInfo bucketAndSubIndex()

in dispenso/concurrent_vector.h [1003:1014]

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

  DISPENSO_INLINE cv::BucketInfo bucketAndSubIndex(size_t index) const {
    size_t l2idx = detail::log2(index | 1);
    size_t bucket = (l2idx + 1) - firstBucketShift_;
    size_t bucketCapacity = size_t{1} << l2idx;
    size_t bucketIndex = index - bucketCapacity;

    bucket = index < firstBucketLen_ ? 0 : bucket;
    bucketIndex = index < firstBucketLen_ ? index : bucketIndex;
    bucketCapacity = index < firstBucketLen_ ? firstBucketLen_ : bucketCapacity;

    return {bucket, bucketIndex, bucketCapacity};
  }