Overloading in Perl / Using overload.pm

Overloadable Operators

• Arithmetic: +, +=, -, -=, *, *=, /, /=, %, %=, **, **=, <<, <<=, >>, >>=, x, x=, ., .=
• Comparison: <, <=, >, >=, ==, !=, <=>, lt, le, gt, ge, eq, ne, cmp
• Bit: &, ^, |, neg, !, ~
• Increment/Decrement: ++, --
• ...and many others (see perldoc overload)