From: Wes Gamble <weyus@...>
Date: 2006-03-22T08:22:46+09:00
Subject: Re: Newbie: Printing hex formatted string using printf

If I do

  puts "Magic number is: #{magic_number.to_s(16)}"

I get

  wrong number of arguments (1 for 0)

wg

Matthew Moss wrote:
>> Why does printf act like a private method here?
> 
> printf is not a method on Fixnum. The error is confusing (except that
> the first word is "NoMethodError").
> 
> If you want to use printf, just do:
> 
> $stderr.printf "Magic number is: %X\n", magic_number
> 
> Or, more ruby-ish:
> 
> puts "Magic number is: #{magic_number.to_s(16)}"


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