numeric.c: improves Integer#round rdoc [ci skip]

* numeric.c (int_round): [DOC] improves Integer#round documentation
  as well as Float#round.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58192 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-03-28 02:30:14 +00:00
parent ad5be35980
commit 50d6291d86

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@ -5010,7 +5010,7 @@ int_dotimes(VALUE num)
/*
* Document-method: Integer#round
* call-seq:
* int.round([ndigits]) -> integer or float
* int.round([ndigits] [, half: symbol]) -> integer or float
*
* Rounds +int+ to a given precision in decimal digits (default 0 digits).
*
@ -5020,6 +5020,15 @@ int_dotimes(VALUE num)
* 1.round #=> 1
* 1.round(2) #=> 1.0
* 15.round(-1) #=> 20
*
* The <code>half:</code> optional keyword same as Float#round is available.
*
* 25.round(-1, half: :up) #=> 30
* 25.round(-1, half: :even) #=> 20
* 25.round(-1, half: :down) #=> 20
* 35.round(-1, half: :up) #=> 40
* 35.round(-1, half: :even) #=> 40
* 35.round(-1, half: :down) #=> 30
*/
static VALUE