Get the last error message.

The last error message in case of errors, or the empty string otherwise.

The following example prints an error message in case of errors in R evaluations:

 Reval('missingfunction()')
 if Rerrcode<>0 then
  writeln('Something went wrong: ', Rerrmsg)
  Rclearerr
 end-if

The message returned by this function is a top-level description of the error. It is possible to also retrieve R own error message for example with Rgetstr("geterrmessage()").

Rclearerr, Rerrcode.