Method InsertBucketFor

source/enum_set.h:423–434

Creates a new bucket to store `value` and inserts it at `index`. If the `index` is past the end, the bucket is inserted at the end of the vector.

  // If the `index` is past the end, the bucket is inserted at the end of the
  // vector.
  void InsertBucketFor(size_t index, T value) {
    const T bucket_start = ComputeBucketStart(value);
    Bucket bucket = {1ULL << ComputeBucketOffset(value), bucket_start};
    auto it = buckets_.emplace(buckets_.begin() + index, std::move(bucket));
#if defined(NDEBUG)
    (void)it;  // Silencing unused variable warning.
#else
    assert(std::next(it) == buckets_.end() ||
           std::next(it)->start > bucket_start);
    assert(it == buckets_.begin() || std::prev(it)->start < bucket_start);
#endif
  }

  // Returns true if the bucket at `bucketIndex/ stores the enum at
  // `bucketOffset`, false otherwise.