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Remove outdated example from Numeric documentation

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Since 2.5, Numeric instances can be cloned and duplicated.

[Fix GH-1850]

From: Miguel Landaeta <miguel@miguel.cc>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63112 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2018-04-07 13:03:35 +00:00
parent ba267bce47
commit 23228b6e31
1 changed files with 4 additions and 3 deletions
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7
numeric.c
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@ -5277,10 +5277,11 @@ rb_int_s_isqrt(VALUE self, VALUE num)
* 1.object_id == a.object_id #=> true * 1.object_id == a.object_id #=> true
* *
* There can only ever be one instance of the integer +1+, for example. Ruby ensures this * There can only ever be one instance of the integer +1+, for example. Ruby ensures this
* by preventing instantiation and duplication. * by preventing instantiation. If duplication is attempted, the same instance is returned.
* *
* Integer.new(1) #=> NoMethodError: undefined method `new' for Integer:Class * Integer.new(1) #=> NoMethodError: undefined method `new' for Integer:Class
* 1.dup #=> TypeError: can't dup Integer * 1.dup #=> 1
* 1.object_id == 1.dup.object_id #=> true
* *
* For this reason, Numeric should be used when defining other numeric classes. * For this reason, Numeric should be used when defining other numeric classes.
* *