From: Ted Flethuseo <flethuseo@...>
Date: 2010-06-25T13:30:32+09:00
Subject: writing binary file

Hi everyone,

I'm trying to write a couple of numbers to a binary file:

num = [1234567, 30, 40]
File.open("test.file", "wb") { |f|
  num.each { |e| f.write e.to_i.pack("I") }
  # f.write num.pack("I")
}

a = []
File.open("test.file", "rb") { |f|
  a = f.read(4).unpack("I")
  puts a
}

but I get errors for pack, I'd like to be able to use it such that I can
read
write several integers to binary file. I have seen it work for this code
(but it is only one int):

num = [1234567]
File.open("test.file", "wb") { |f|
  num.each { |e| f.write e.to_i.pack("I") }
  # f.write num.pack("I")
}

a = []
File.open("test.file", "rb") { |f|
  a = f.read(4).unpack("I")
  puts a
}

Any help appreciated.
Ted
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