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* array.c (rb_ary_flatten_bang): returns nil if nothing changed.

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a patch from Marc-Andre Lafortune in [ruby-core:23382].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23361 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-05-07 07:40:11 +00:00
parent 2f16447239
commit 94ee3e7e02
3 changed files with 9 additions and 1 deletions
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3
test/ruby/test_array.rb
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@ -736,11 +736,14 @@ class TestArray < Test::Unit::TestCase
a5 = @cls[ a1, @cls[], a3 ]
assert_equal(@cls[1, 2, 3, 4, 5, 6], a5.flatten!)
assert_nil(a5.flatten!(0), '[ruby-core:23382]')
assert_equal(@cls[1, 2, 3, 4, 5, 6], a5)
assert_equal(@cls[], @cls[].flatten)
assert_equal(@cls[],
@cls[@cls[@cls[@cls[],@cls[]],@cls[@cls[]],@cls[]],@cls[@cls[@cls[]]]].flatten)
assert_nil(@cls[].flatten!(0), '[ruby-core:23382]')
end
def test_flatten_with_callcc