From: Kyle Schmitt <kyleaschmitt@...>
Date: 2008-06-28T00:59:23+09:00
Subject: Re: printf goober

perhaps you're thinking of sprintf?

printf returns nil, but displays the string to the screen, so what's
happening here is
puts(printf("blah."))

printf prints out "blah." without a return, then puts prints out the
return value of printf, which is nil.

so you get

blah.nil


To do what you want, use sprintf, which returns for the formatted string

--Kyle
On Fri, Jun 27, 2008 at 10:52 AM, Lloyd Linklater <lloyd@2live4.com> wrote:
> Hi there!
>
> I was experimenting with printf thus:
>
> puts printf("%s is %d years old.", "booboo", 12)
>
> and got this result:
>
> booboo is 12 years old.nil
>
> Where does that nil originate and how do I get rid of it?
> --
> Posted via http://www.ruby-forum.com/.
>
>