SYNOPSIS DESCRIPTION SEE ALSO SHARYANTO Data::Structure::Util has the XS version of has_circular_ref which is at least around 3 times faster than this module's implementation which is pure Perl. Use that instead if possible (in some cases, Data::Structure::Util fails to build and this module provides an alternative for that function). Data::Structure::Util does not the equivalent of this module's clone_circular_refs though. This module is however much faster than Devel::Cycle.