Class Library for Numbers
-Copyright (c) Bruno Haible 1988-2008
-Copyright (c) Richard Kreckel 2000-2009
-Copyright (c) Alexei Sheplyakov 2008
+Copyright (c) Bruno Haible 1988-2019
+Copyright (c) Richard Kreckel 2000-2019
+Copyright (c) Alexei Sheplyakov 2008-2010
GPL