armadillo how to get rid of error message

Question

Running the following code still produces an error message that goes to stdout (not stderr) although the exception was successfully caught:

Mat<double> matrix_quantiles(const vector<double> & quantiles,
                         const Mat<double> & m) {
  Mat<double> sorted_matrix;
  try {
    sorted_matrix = arma::sort(arma::cor(m));
  } catch(std::logic_error & e) {
  /*
   Sometimes a col is constant, causing the correlation to be
   infinite. If that happens, add normal random jitter to the
   values and retry.
  */
  const Mat<double> jitter = Mat<double>(
    m.n_rows, m.n_cols, arma::fill::randn);
  return matrix_quantiles(quantiles, 1.e-3 * jitter + m);
} 
etc.

The error message is:

error: sort(): given object has non-finite elements

The code runs fine, and the jittering strategy is good enough for what I do, but I have to filter out the error message if I write the output to stdout.

Thank you.

Answer 1

To disable printing of error messagaes, define a macro named ARMA_DONT_PRINT_ERRORS before including the Armadillo header. For example:

#define ARMA_DONT_PRINT_ERRORS
#include <armadillo>