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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-11-09 07:08:50 (GMT)
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-11-09 07:08:50 (GMT)
commitfdbd3716781817c840544796d04a7d41b856d9f4 (patch)
treed0bc269c89f8566d5e228a66d1e738e329371a2a /random.c
parentaaa9cb1ab4dd225113f027d4b725b8bb417e2cb1 (diff)
array.c: speedup Array#unshift by using space in shared array
* array.c: speedup Array#unshift by using space in shared array. [Feature #6638] - when array owns its shared array (ARY_SHARED_NUM == 1), and there is enough space then try unshift values directly into shared array. - when resulting array is big (~>64 items) then make it shared with enough room for future #unshifts, and then insert into shared array. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37584 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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