added <READMORE> to let others have fun too ;-)
Why does it evaluate to zero
It does not ;-) add a print "\n";
after that and you'll see.
print //; # pattern-match an empty string. result: 1
print \\//; # ref to ref to variable holding 1 (1)
print \\\//; # ref to ref to ref to variable holding 1 (2)
print \\///\\\//; # print (1) / (2)
Since references return memory addresses when accessed as numbers, the last line will result in some value close to 1, just a little smaller (this is because (1) is allocated before (2)).
Anyway, that's my guess. Anyone care to point my mistakes?
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||