Method repeatExtensibleIndices

src/utilities/idf/IdfObject.cpp:1622–1661

  }

  UnsignedVector IdfObject_Impl::repeatExtensibleIndices(const UnsignedVector& indices) const {

    // assume indices is in order, and any extensible field indices are from the first
    // extensible group
    UnsignedVector result = indices;

    // nothing to do if not extensible
    if (!m_iddObject.properties().extensible) {
      return result;
    }

    // nothing to do if last index is not in extensible group
    if (!result.empty() && !m_iddObject.isExtensibleField(result.back())) {
      return result;
    }

    // otherwise, find group indices of extensible field indices in result
    UnsignedVector groupIndices;
    for (unsigned index : result) {
      if (m_iddObject.isExtensibleField(index)) {
        groupIndices.push_back(m_iddObject.extensibleIndex(index).field);
      }
    }

    unsigned n = m_fields.size();
    unsigned nn = m_iddObject.numFields();
    unsigned ne = m_iddObject.properties().numExtensible;
    unsigned groupIndex = 1;
    while (nn + groupIndex * ne < n) {
      for (unsigned gi : groupIndices) {
        unsigned index = nn + groupIndex * ne + gi;
        if (index < n) {
          result.push_back(index);
        }
      }
      ++groupIndex;
    }

    return result;
  }

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