Method SetColumnName

src/rapidcsv.h:1435–1467

* @brief Set column name * @param pColumnIdx zero-based column index. * @param pColumnName column name. */

     * @param   pColumnName           column name.
     */
    void SetColumnName(size_t pColumnIdx, const std::string& pColumnName)
    {
      if (mLabelParams.mColumnNameIdx < 0)
      {
        throw std::out_of_range("column name row index < 0: " + std::to_string(mLabelParams.mColumnNameIdx));
      }

      const size_t dataColumnIdx = GetDataColumnIndex(pColumnIdx);

      // remove old name from map before adding new one
      const size_t nameRowIdx = static_cast<size_t>(mLabelParams.mColumnNameIdx);
      if ((nameRowIdx < mData.size()) && (dataColumnIdx < mData.at(nameRowIdx).size()))
      {
        const std::string oldName = mData.at(nameRowIdx).at(dataColumnIdx);
        mColumnNames.erase(oldName);
      }
      mColumnNames[pColumnName] = dataColumnIdx;

      // increase table size if necessary:
      const size_t rowIdx = static_cast<size_t>(mLabelParams.mColumnNameIdx);
      if (rowIdx >= mData.size())
      {
        mData.resize(rowIdx + 1);
      }

      std::vector<std::string>& row = mData[rowIdx];
      if (dataColumnIdx >= row.size())
      {
        row.resize(dataColumnIdx + 1);
      }

      mData.at(static_cast<size_t>(mLabelParams.mColumnNameIdx)).at(dataColumnIdx) = pColumnName;
    }

    /**
     * @brief   Get column names