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Added sample code of merge! method in hash.c.

Browse source 
https://github.com/ruby/ruby/pull/1652

  Patch by @selmertsx [fix GH-1652]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60273 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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hsbt 2017-10-21 13:40:12 +00:00
parent 3e95ecd8d1
commit ec4141f183
1 changed files with 2 additions and 0 deletions
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hash.c
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@ -2530,11 +2530,13 @@ rb_hash_update_block_i(VALUE key, VALUE value, VALUE hash)
* h1 = { "a" => 100, "b" => 200 }
* h2 = { "b" => 254, "c" => 300 }
* h1.merge!(h2) #=> {"a"=>100, "b"=>254, "c"=>300}
* h1 #=> {"a"=>100, "b"=>254, "c"=>300}
*
* h1 = { "a" => 100, "b" => 200 }
* h2 = { "b" => 254, "c" => 300 }
* h1.merge!(h2) { |key, v1, v2| v1 }
* #=> {"a"=>100, "b"=>200, "c"=>300}
* h1 #=> {"a"=>100, "b"=>200, "c"=>300}
*/
static VALUE