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Perl Error Pseudo Hashes Are Deprecated

Pseudo-hashes are deprecated and should not be used. are the integers modulo 4 a field? There are two ways to check for the existence of a key in a pseudo-hash. Here are some examples: $scalarref = \$foo; $arrayref = \@ARGV; $hashref = \%ENV; $coderef = \&handler; $globref = \*foo;It isn't possible to create a true reference to an IO handle (filehandle navigate here

Are illegal immigrants more likely to commit crimes? "Surprising" examples of Markov chains more hot questions question feed lang-perl about us tour help blog chat data legal privacy policy work here Because arrays and hashes contain scalars, you can now easily build arrays of arrays, arrays of hashes, hashes of arrays, arrays of hashes of functions, and so on. For example: local $value = 10; $ref = "value"; { my $value = 20; print $$ref; }This will still print 10, not 20. Do I need to do this? http://stackoverflow.com/questions/7618269/troubleshooting-pseudo-hashes-are-deprecated-while-using-xml-module

current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. Apparently the older syntax in the camel book's not good any more and I've fiddled aroudn with this a while and read Web tutorials on hashes of hashes without luck. Was there more than one file? –ikegami Oct 1 '11 at 9:36 yes, sorry.

Beginning with release 5.005 of Perl, you may use an array reference in some contexts that would normally require a hash reference. Any help welcome! I think it's either because the only time I have to play with Perl for the last several weeks is between 10:00 PM and 1:00 AM, or the total program is If you are accustomed to using nested subroutines in other programming languages with their own private variables, you'll have to work at it a bit in Perl.

Member Login Remember Me Forgot your password? Why are planets not crushed by gravity? The tag allows you to delimit a section of text and give it a name. Simple.

x x) has a type, then is the type system inconsistent? You can call red(), RED(), blue(), BLUE(), green(), etc. node historyNode Type: perlquestion [id://399893]Approved by Moriartyhelp Chatterbox? and all is quiet... An inner block may countermand that with no strict 'refs';Only package variables (globals, even if localized) are visible to symbolic references.

For example, after the above, $arrayref->[2][1] would have the value "b".) Taking a reference to an enumerated list is not the same as using square brackets--instead it's the Dynamic variables continue to work as they have always worked. They do so by starting with an ordinary reference, and it remains an ordinary reference even while it's also being an object. If so, it's automatically defined with a hash reference so that we can look up {"foo"} in it.

foreach my $row(@{$json_obj->{rows}}){ #Results from this particular query have a "Key" and a "Value" print $row->{Key} . ":" . $row->{Value} . "n"; } output ( error ) : Pseudo-hashes are deprecated check over here Longest "De Bruijn phrase" in English Why don't browser DNS caches mitigate DDOS attacks on DNS providers? This is one of the only places where giving a prototype to a closure makes much sense. You never declared or added to it before now.

There are several basic methods. 1. Guest OK, so I see that this is a Perl 5.8 change. See also perldsc and perllol for how to use references to create complex data structures, and perltoot, perlobj, and perlbot for how to use them to create objects. his comment is here References are often returned by special subroutines called constructors.

This process is called autovivification. The next question is: What is your program suppose to do when there is more than one file, cause right now it assumes there is only one file. –ikegami Oct 1 Yes, I was doing a hash of lists and not a hash of hashes, I got confused since I was also doing a hash of hashes.

Here is the relative section I'm talking about for those who don't have Template.pm.

Constructors are just special subroutines that know how to create that association. Before this statement, $array[$x] may have been undefined. This is most useful if you're already using untyped pseudo-hashes, and don't want the compile-time checking feature. The loop iterates over the list and produces output from the text block for each pass.

See perlobj for more about objects. (In a sense, everything in Perl is an object, but we usually reserve the word for references to objects that have been officially "blessed" into Based on what you've shown, I have to conclude that your real problem is within this blah blah blah. > push (@{ $logips{$logfile} }, $logip) unless ( Where idd $logfile and A reference to an anonymous subroutine can be created by using sub without a subname: $coderef = sub { print "Boink!\n" };Note the semicolon. weblink You said you wanted to exit if the file doesn't exist, so that means you want my $found; for my $file (@{ $data->{file} }) { if ($file->{path} =~ m{/test-out-00\z}) { $found

Lexical variables (declared with my()) aren't in a symbol table, and thus are invisible to this mechanism. I see a slight difference in the structure (see edit) –jdamae Oct 1 '11 at 7:23 See my edit for changes to handle the new structure. –stevenl Oct 4