From: Wes Gamble <weyus@...>
Date: 2006-03-22T08:38:53+09:00
Subject: Re: Newbie: Printing hex formatted string using printf

magic_number is a string returned by IO.read or IO.sysread

I wanted it to be raw bytes but couldn't find a way to get them.

Wes

Mike Stok wrote:
> On 21-Mar-06, at 6:22 PM, Wes Gamble wrote:
> 
>> If I do
>>
>>   puts "Magic number is: #{magic_number.to_s(16)}"
>>
>> I get
>>
>>   wrong number of arguments (1 for 0)
>>
>> wg
> 
> What is in magic_number?  If it's something other than an integer-y
> number then the conversion base is not expected e.g.
> 
> ratdog:~ mike$ /usr/bin/irb
> irb(main):001:0> magic_number = 3
> => 3
> irb(main):002:0> puts "Magic number is: #{magic_number.to_s(16)}"
> Magic number is: 3
> => nil
> irb(main):003:0> "foo".to_s(16)
> ArgumentError: wrong number of arguments (1 for 0)
>          from (irb):3:in `to_s'
>          from (irb):3
> irb(main):004:0> 123.4.to_s(16)
> ArgumentError: wrong number of arguments (1 for 0)
>          from (irb):4:in `to_s'
>          from (irb):4
> 
> Mike
> 
> 
> --
> 
> Mike Stok <mike@stok.ca>
> http://www.stok.ca/~mike/
> 
> The "`Stok' disclaimers" apply.


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