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* lib/set.rb (Set#^): Fix XOR operation against a container that

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holds duplicate values. [issue: #6444]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11263 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
knu 2006-11-02 05:45:12 +00:00
parent 8368499bcc
commit 12f9e1b64d
2 changed files with 14 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Nov 2 14:19:44 2006 Akinori MUSHA <knu@iDaemons.org>
* lib/set.rb (Set#^): Fix XOR operation against a container that
holds duplicate values. [issue: #6444]
Thu Nov 2 10:00:06 2006 Yukihiro Matsumoto <matz@ruby-lang.org> Thu Nov 2 10:00:06 2006 Yukihiro Matsumoto <matz@ruby-lang.org>
* string.c: class Symbol is no longer subclass of String. also * string.c: class Symbol is no longer subclass of String. also

11
lib/set.rb
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@ -294,8 +294,8 @@ class Set
# and the given enumerable object. (set ^ enum) is equivalent to # and the given enumerable object. (set ^ enum) is equivalent to
# ((set | enum) - (set & enum)). # ((set | enum) - (set & enum)).
def ^(enum) def ^(enum)
n = dup n = Set.new(enum)
enum.each { |o| if n.include?(o) then n.delete(o) else n.add(o) end } each { |o| if n.include?(o) then n.delete(o) else n.add(o) end }
n n
end end
@ -1039,6 +1039,13 @@ class TC_Set < Test::Unit::TestCase
assert_equal(Set[2,4], ret) assert_equal(Set[2,4], ret)
end 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 def test_eq
set1 = Set[2,3,1] set1 = Set[2,3,1]
set2 = Set[1,2,3] set2 = Set[1,2,3]