update doc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27101 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 0 deletions

diff --git a/time.c b/time.c
index be6f5c7c66..8747d39fee 100644
--- a/time.c
+++ b/time.c
@@ -3435,6 +3435,21 @@ rb_time_succ(VALUE time)
  *
  *     require 'time'
  *
+ *     t = Time.utc(2010,3,30, 5,43,"25.123456789".to_r)
+ *     p t.iso8601(10)           #=> "2010-03-30T05:43:25.1234567890Z"
+ *     p t.round.iso8601(10)     #=> "2010-03-30T05:43:25.0000000000Z"
+ *     p t.round(0).iso8601(10)  #=> "2010-03-30T05:43:25.0000000000Z"
+ *     p t.round(1).iso8601(10)  #=> "2010-03-30T05:43:25.1000000000Z"
+ *     p t.round(2).iso8601(10)  #=> "2010-03-30T05:43:25.1200000000Z"
+ *     p t.round(3).iso8601(10)  #=> "2010-03-30T05:43:25.1230000000Z"
+ *     p t.round(4).iso8601(10)  #=> "2010-03-30T05:43:25.1235000000Z"
+ *     p t.round(5).iso8601(10)  #=> "2010-03-30T05:43:25.1234600000Z"
+ *     p t.round(6).iso8601(10)  #=> "2010-03-30T05:43:25.1234570000Z"
+ *     p t.round(7).iso8601(10)  #=> "2010-03-30T05:43:25.1234568000Z"
+ *     p t.round(8).iso8601(10)  #=> "2010-03-30T05:43:25.1234567900Z"
+ *     p t.round(9).iso8601(10)  #=> "2010-03-30T05:43:25.1234567890Z"
+ *     p t.round(10).iso8601(10) #=> "2010-03-30T05:43:25.1234567890Z"
+ *
  *     t = Time.utc(1999,12,31, 23,59,59)          
  *     p((t + 0.4).round.iso8601(3))    #=> "1999-12-31T23:59:59.000Z"
  *     p((t + 0.49).round.iso8601(3))   #=> "1999-12-31T23:59:59.000Z"