Add a variant of map() that accepts a bitmask

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
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      This variant can wrap the calls to op.processBlock so that it works on contiguous items that are selected by the bitmask, e.g.

      while (cursor < end) {
  while (cursor < end && !bitmap[cursor]) cursor++; 
  if (cursor < end) {
     size_t chunkEnd = cursor+1;
     while (chunkEnd < end && bitmap[chunkEnd]) chunkEnd++;
     op.processBatch(..., vals.data()+cursor, chunkEnd - cursor);
     cursor = chunkEnd;
  }
}

      After that API is in place, the current implementation of the mathematical expressions can reuse it

            Assignee:
            Unassigned
            Reporter:
            Alberto Massari
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              Created:
              Updated: