From: Martin Gagnon <skidoo15hp@...>
Date: 2007-04-06T03:28:59+09:00
Subject: Re: Install problems under QNX

Just noticing that the numbers returned by IO#pos are way off, but 
cycling through 4 values.
This test script:
-----
f = File.open("test.txt", "r+")
puts "f.pos: #{f.pos}"
-----
produces successively:
f.pos: 1160802808249712640
f.pos: 3466645817463406592
f.pos: 5772488826677100544
f.pos: 8078331835890794496
f.pos: 1160802808249712640
f.pos: 3466645817463406592
f.pos: 5772488826677100544
f.pos: 8078331835890794496
The difference is constant: 2305843009213693952 (2^61)

And this script:
-----
3.times do
  f = File.new("/home/martin/test.txt")
  puts "f.pos: #{f.pos}"
end
-----
produces successively:
f.pos: 1160802808249712640
f.pos: 1160802808249712640
f.pos: 1160802808249712640
-----
f.pos: 3466645817463406592
f.pos: 3466645817463406592
f.pos: 3466645817463406592
-----

-- 
Posted via http://www.ruby-forum.com/.