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string.c: grapheme clusters on frozen string

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* string.c (rb_str_enumerate_grapheme_clusters): enumerate on
  shared frozen string.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59743 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-09-04 14:04:54 +00:00
parent 805d6f6f3c
commit e568455826
2 changed files with 6 additions and 1 deletions
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2
test/ruby/test_string.rb
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@ -919,6 +919,8 @@ CODE
assert_equal ["\u000A", "\u0308"], "\u{a 308}".each_grapheme_cluster.to_a
assert_equal ["\u000D", "\u0308"], "\u{d 308}".each_grapheme_cluster.to_a
assert_equal ["a", "b", "c"], "abc".b.each_grapheme_cluster.to_a
s = ("x"+"\u{10ABCD}"*250000)
assert_empty(s.each_grapheme_cluster {s.clear})
end
def test_grapheme_clusters