And yet, it is so profligate.

Of course, since it is copying all the stuff around. What about 

sub x3{ 1 .. 1e6 }
print time; $r = [ x3() ]; print time;

[download]

this?

But of course that wasn't my point - I'm rather saying that it is a bad idea to hide the decision of how to deal with returns in a place far away. And no, I'm not going the "context is bad" route; but using context to obfuscate things should be used in obfuscation type of code, only...

In reply to Re^3: Use of wantarray Considered Harmful (bad use) by shmem
in thread Use of wantarray Considered Harmful by kyle

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.