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Feature #15772
closedProposal: Add Time#ceil
Status:
Closed
Assignee:
-
Target version:
-
Description
Summary¶
proposal for a method that rounds up the decimal part of Time
(nanosecond) to the specified digit.
Current status¶
-
Time#round
andTime#floor
(https://bugs.ruby-lang.org/issues/15653) are defined. - However,
Time#ceil
is not defined. - So, I would like to respond flexibly when I would like to control decimal precision.
Propose Time#ceil
Below is example code.
require 'time'
t = Time.utc(2010,3,30, 5,43,"25.0123456789".to_r)
p t.iso8601(10) #=> "2010-03-30T05:43:25.0123456789Z"
p t.ceil(0).iso8601(10) #=> "2010-03-30T05:43:26.0000000000Z"
p t.ceil(1).iso8601(10) #=> "2010-03-30T05:43:25.1000000000Z"
p t.ceil(2).iso8601(10) #=> "2010-03-30T05:43:25.0200000000Z"
p t.ceil(3).iso8601(10) #=> "2010-03-30T05:43:25.0130000000Z"
p t.ceil(4).iso8601(10) #=> "2010-03-30T05:43:25.0124000000Z"
p t.ceil(5).iso8601(10) #=> "2010-03-30T05:43:25.0123500000Z"
p t.ceil(6).iso8601(10) #=> "2010-03-30T05:43:25.0123460000Z"
p t.ceil(7).iso8601(10) #=> "2010-03-30T05:43:25.0123457000Z"
p t.ceil(8).iso8601(10) #=> "2010-03-30T05:43:25.0123456800Z"
p t.ceil(9).iso8601(10) #=> "2010-03-30T05:43:25.0123456790Z"
p t.ceil(10).iso8601(10) #=> "2010-03-30T05:43:25.0123456790Z"
# default argument is 0
p t.ceil.iso8601(10) #=> "2010-03-30T05:43:26.0000000000Z"
t = Time.utc(1999,12,31, 23,59,59)
p (t + 0.4).ceil.iso8601(3) #=> "2000-01-01T00:00:00.000Z"
p (t + 0.49).ceil.iso8601(3) #=> "2000-01-01T00:00:00.000Z"
p (t + 0.5).ceil.iso8601(3) #=> "2000-01-01T00:00:00.000Z"
p (t + 1.4).ceil.iso8601(3) #=> "2000-01-01T00:00:01.000Z"
p (t + 1.49).ceil.iso8601(3) #=> "2000-01-01T00:00:01.000Z"
p (t + 1.5).ceil.iso8601(3) #=> "2000-01-01T00:00:01.000Z"
t = Time.utc(1999,12,31, 23,59,59)
p (t + 0.123456789).ceil(4).iso8601(6) #=> "1999-12-31T23:59:59.123500Z"
pull request : https://github.com/ruby/ruby/pull/2133
Updated by matz (Yukihiro Matsumoto) over 5 years ago
Accepted.
Matz.
Updated by nobu (Nobuyoshi Nakada) over 5 years ago
- Status changed from Open to Closed
Closed by f5415a95ce1d393a3fd1d7f657ba85d85171356a
I missed the tag to close the ticket.
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