list of ruby operators that can be overridden/implemented

Question

Is there a list anywhere of all ruby operators that can be overridden? (Not the ones that can't!)

Answer 1

Here's a table of the Ruby operators.

The ones that are methods and overloadable are:

[ ] [ ]=    Element reference, element set **  Exponentiation ! ~ + -     Not, complement, unary plus and minus (method names for the last two are +@ and -@) * / %   Multiply, divide, and modulo + -     Plus and minus >> <<   Right and left shift &   Bitwise `and' ^ |     Bitwise exclusive `or' and regular `or' <= < > >=   Comparison operators <=> == === != =~ !~     Equality and pattern match operators (!= and !~ may not be defined as methods) 

The table was from the 2001 Pickaxe book, but that's the same table as in the Ruby 1.9 Pickaxe book -- no reason to believe that this set of infix operators will ever change.