Hi everyone, I'm looking for some documentation on why the fourth of these examples is an error:
$ perl -wMstrict -e 'BEGIN { package blah; *::x=sub{} } x'
$ perl -wMstrict -e 'BEGIN { *::x=sub{} } x'
$ perl -wMstrict -e 'BEGIN { package blah; *::x=\$a } $x++'
$ perl -wMstrict -e 'BEGIN { *::x=\$a } $x++'
Variable "$x" is not imported at -e line 1.
Global symbol "$x" requires explicit package name (did you forget to d
+eclare "my $x"?) at -e line 1.
Execution of -e aborted due to compilation errors.
The explanation for why is here, so I'm really just looking for something in the official Perl docs, but I haven't found it yet. Any help would be appreciated :-)
Update: Thanks very much for all the replies! :-)
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.