Having a problem keeping my floating point vars as floats and not being truncated to integers when I try to split the string Lemme show working vs. non: 

#working:
>perl -e 'printf "(%s)\n", $ARGV[0]', 2.3
(2.3)

#still good:
> perl -e 'printf "%s\n", do { $ARGV[0] }', 2.3
(2.3)

# now to split 
> perl -we 'printf("(%s)\n", split(q(.), "$ARGV[0]" )  );' 2.3
Missing argument in printf at -e line 1.
()

[download]
Why?

Why missing (argument), and why empty output?
split should output an array in list context and the list length in scalar context, so either a list (array ref, I guess?) of "2, 3" or a scalar '2', as number of elements, no?

What's tripping things up? Ideas?

In reply to prob keeping my floats floating by perl-diddler

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.