From: Mike Stok <mike@...>
Date: 2006-03-22T08:33:28+09:00
Subject: Re: Newbie: Printing hex formatted string using printf


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.