From: ts <decoux@...>
Date: 2003-11-20T18:50:20+09:00
Subject: Re: [BUG] File#rewind, File#syswrite, File#pos on Cygwin build

>>>>> "R" == Robert Klemme <bob.news@gmx.net> writes:

R> "Do not mix with other methods that write to ios or you may get
R> unpredictable results."
R> http://www.rubycentral.com/book/ref_c_io.html#IO.syswrite

 No, no.

moulon% cat b.rb
#!/usr/bin/ruby
testStr = "hello\nthis is some example text\nblah blah blah"

File.open("out.txt", 'r+') do |file|
   file.readlines
   puts "Now at position #{file.pos}"
   file.rewind
   puts "Now at position #{file.pos}"
   bytes = file.syswrite(testStr)
   puts "#{bytes} bytes written"
   puts "Now at position #{file.pos}"
end
moulon% 

moulon% ruby -v b.rb
ruby 1.8.0 (2003-08-04) [sparc-solaris2.7]
Now at position 3330
Now at position 0
46 bytes written
Now at position 46
moulon% 

 the problem is in cygwin and linux ...



Guy Decoux