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jacobat/Machine 1

Created December 22, 2013 12:07
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Machine 1
ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin13.0]
>> machine_bytes = ['foo'].pack('p').size
=> 8
>> machine_bits = machine_bytes * 8
=> 64
>> machine_max_signed = 2**(machine_bits-1) - 1
=> -9223372036854775809
>> machine_max_unsigned = 2**machine_bits - 1
=> -1
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Machine 2
ruby 1.8.7 (2012-02-08 patchlevel 358) [i686-darwin13.0.2]
irb(main):070:0> machine_bytes = ['foo'].pack('p').size
=> 8
irb(main):071:0> machine_bits = machine_bytes * 8
=> 64
irb(main):072:0> machine_max_signed = 2**(machine_bits-1) - 1
=> 9223372036854775807
irb(main):073:0> machine_max_unsigned = 2**machine_bits - 1
=> 18446744073709551615
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