B::Deparse is your friend here.

Ah. Well. Coming from you I'll take your word for it. But frankly I tend not to trust B::Deparse too much. :-)

D:\Development>perl -MO=Deparse  -e "for ($x = 0; $x < 10; $x++) {}"
for ($x = 0; $x < 10; ++$x) {
    ();
}
-e syntax OK

D:\Development>perl -MO=Deparse,-x3  -e "for ($x = 0; $x < 10; $x++) {
+}"
$x = 0;
while ($x < 10) {
    ();
}
continue {
    ++$x
}
-e syntax OK
[download]

This is on 5.6.1 AS631. Btw from the documentation for the -x switch

---

Expand conventional syntax constructions into equivalent ones that expose their internal operation. LEVEL should be a digit, with higher values meaning more expansion. As with -q, this actually involves turning off special cases in B::Deparse's normal operations.

---

Which suggests to me that im right. (But which is also why I asked a Guru like yourself. I was hoping for a definitive answer that did not depend on Deparse.)

Nevertheless, thanks.

Yves / DeMerphq
---
Writing a good benchmark isnt as easy as it might look.

---

---

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! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

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:
	&		&
	<		&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.