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merge revision(s) r46417,r46418: [Backport #9939]

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* array.c (yield_indexed_values): extract from permute0(),
	  rpermute0(), and rcombinate0().

	* array.c (rb_ary_combination): iterate on a shared copy, and use
	  array of indexes instead of array of chosen objects.
	  [ruby-core:63149] [Bug #9939]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46808 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nagachika 2014-07-13 14:16:37 +00:00
parent aa8380e17a
commit 99ea5ebb9e
4 changed files with 48 additions and 45 deletions
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9
test/ruby/test_array.rb
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@ -2291,6 +2291,15 @@ class TestArray < Test::Unit::TestCase
assert_equal(:called, (0..100).to_a.combination(50) { break :called }, "[ruby-core:29240] ... must be yielded even if 100C50 > signed integer")
end
def test_combination_clear
bug9939 = '[ruby-core:63149] [Bug #9939]'
assert_separately([], <<-'end;')
100_000.times {Array.new(1000)}
a = [*0..100]
a.combination(3) {|*,x| a.clear}
end;
end
def test_product2
a = (0..100).to_a
assert_raise(RangeError) do