[Rcpp-devel] Fwd: How can I avoid calls to coerceToReal

[Pratibha Rana]

Hi,

MY application is performing really slow due to unnecessary calls to
coerceToReal from this line NumericVector ocol = df[j]. Here is a sample
of what I am doing. Is there a way to avoid the unnecessary overhead?
Please note that the data in df is float data.


          void  writeDataToPartitionWriter(DataFrame df, Writer
&res_writer)
          {

                NumericVector ocol = df[j];
                if(ocol[i] ==NA_REAL)
                    res_writer.setFloat(j, vfloat_null);
                else
                {
                    vfloat floatout = static_cast<vfloat>(ocol[i]);
                    res_writer.setFloat(j, floatout);
                }

          }


Thanks
Pratibha



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