diff options
| -rw-r--r-- | lib/set.rb | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/lib/set.rb b/lib/set.rb index c2792dedb1..40715edb36 100644 --- a/lib/set.rb +++ b/lib/set.rb @@ -146,23 +146,21 @@ class Set end alias member? include? - # Returns true if the set is a superset of or is equal to the given - # set. + # Returns true if the set is a superset of the given set. def superset?(set) set.is_a?(Set) or raise ArgumentError, "value must be a set" return false if size < set.size set.all? { |o| include?(o) } end - # Returns true if the set is a superset of or is equal to the given - # set. + # Returns true if the set is a proper superset of the given set. def proper_superset?(set) set.is_a?(Set) or raise ArgumentError, "value must be a set" return false if size <= set.size set.all? { |o| include?(o) } end - # Returns true if the set is a proper subset of the given set. + # Returns true if the set is a subset of the given set. def subset?(set) set.is_a?(Set) or raise ArgumentError, "value must be a set" return false if set.size < size |