Report the version of Armadillo
armadillo_version(single)armadillo_version_typed()
Depending on the value of single, either a single number describing
the Armadillo version or a named vector with three elements major, minor
and patch. The function armadillo_version_typed returns an S3 object
of classes ‘package_version’ and ‘numeric_version’ which offer comparison
and formatting operators.
A logical vector indicating whether a single return values is requested,
or a named vector with three elements major, minor and patch.
The version is defined by Armadillo in the header arma_version.hpp.
Armadillo header file arma_version.hpp.