From: Russell Penney <redmine@...>
Date: 2010-03-11T13:38:19+09:00
Subject: [ruby-core:28602] [Bug #2952] Time.strftime format %N

Bug #2952: Time.strftime format %N
http://redmine.ruby-lang.org/issues/show/2952

Author: Russell Penney
Status: Open, Priority: Normal
Category: core
ruby -v: ruby 1.9.1p243 (2009-07-16 revision 24175) [i386-mingw32]

There seems to be some rouding errors with the %N formatter for Time->strftime
t1 = 1236922275.8516
t2 = Time.at(t1)

puts t1
puts t2.to_f
puts t1 == t2.to_f
puts t2.strftime("%s.%6N")

prints
1236922275.8516
1236922275.8516
true
1236922275.851599

The last line is wrong. I would expect it would print "1236922275.851600". 
If I use %4N I get 1236922275.8515 which is also wrong


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