From e3ed0b4db2f1420e524056bf2b86e8a561e5cb09 Mon Sep 17 00:00:00 2001 From: knu Date: Thu, 2 Nov 2006 05:45:12 +0000 Subject: * lib/set.rb (Set#^): Fix XOR operation against a container that holds duplicate values. [issue: #6444] git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@11263 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- lib/set.rb | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'lib/set.rb') diff --git a/lib/set.rb b/lib/set.rb index ace02e08f..66ffc898a 100644 --- a/lib/set.rb +++ b/lib/set.rb @@ -294,8 +294,8 @@ class Set # and the given enumerable object. (set ^ enum) is equivalent to # ((set | enum) - (set & enum)). def ^(enum) - n = dup - enum.each { |o| if n.include?(o) then n.delete(o) else n.add(o) end } + n = Set.new(enum) + each { |o| if n.include?(o) then n.delete(o) else n.add(o) end } n end @@ -1039,6 +1039,13 @@ class TC_Set < Test::Unit::TestCase assert_equal(Set[2,4], ret) end + def test_xor + set = Set[1,2,3,4] + ret = set ^ [2,4,5,5] + assert_not_same(set, ret) + assert_equal(Set[1,3,5], ret) + end + def test_eq set1 = Set[2,3,1] set2 = Set[1,2,3] -- cgit