diff options
Diffstat (limited to 'mrblib/enum.rb')
| -rw-r--r-- | mrblib/enum.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mrblib/enum.rb b/mrblib/enum.rb index 0593e1f04..e6aa682dd 100644 --- a/mrblib/enum.rb +++ b/mrblib/enum.rb @@ -395,4 +395,13 @@ module Enumerable # # ISO 15.3.2.2.20 alias to_a entries + + # redefine #hash 15.3.1.3.15 + def hash + h = 12347 + self.each do |e| + h ^= e.hash + end + h + end end |