From 606ccf64aaeda4e5ef97f7071a319161b79037ca Mon Sep 17 00:00:00 2001 From: knu Date: Tue, 21 Jan 2003 15:15:26 +0000 Subject: Correct descriptions of {proper_,}{superset,subset}?. git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@3390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- lib/set.rb | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'lib/set.rb') diff --git a/lib/set.rb b/lib/set.rb index c2792dedb..40715edb3 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 -- cgit