A ref too far: assign an array ref to an array ref to a hash element

From: Angie Ahl (alists_at_vertebrate.co.uk)
Date: 05/29/04 

Date: Fri, 28 May 2004 23:00:29 +0100
To: Perl List <beginners@perl.org>

Hi people

I'm trying to create a hash of arrays of arrays and I'm having a mind
twisting time with references.

my $key = "some_varying_text"
my %pathhash;
my @link = ($LinkUrl, $LinkTitle);

I'm trying to set $pathhash{$key} to an array that contains the array
@link.
ie there will be multiple @link arrays in $pathhash{$key}.

I just can't work out how to assign an array ref to an array ref to a
hash element. I think that's right.

Any clues anyone... please, 4 hours down and a lot of RTFM'ing hasn't
helped (quite the opposite actually;)

Angie

Relevant Pages

  • Duck Typed Concepts for Ruby (was Re: A use case for an ordered hash)
    ... An Sequencable mixin can be defined that implements all sorts of operations such as append, concat, splice, sort, etc. ... extending an instance of Array with Sorted if the array is known to be sorted. ... Now returning to the thread at hand we can see that the difference between the associative array and hash hierarchies is that the hash hierarchy depends upon Hashable keys. ...
    (comp.lang.ruby)
  • Re: Suggestions for double-hashing scheme
    ... >> The items that are being moved are the items in the hash table itself, ... >> which are of fixed size (they are in an array, ... > typedef struct { ... One "uchar" aka 'unsigned char' is plenty to hold a probe ...
    (comp.programming)
  • Re: Fwd: Re: dbm again
    ... The hash has only one key, ... Can't use string ) as an ARRAY ref while strict refs in ... It seems like I am somehow dealing with a reference to an array!? ... as a string and tried to be derefenced. ...
    (perl.beginners)
  • [SUMMARY] Index and Query (#54)
    ... This was a fun quiz for me because I really don't know anything about indexing ... We see in initializethat the index is just a Hash. ... an Array of symbolic document names where the word can be found ). ...
    (comp.lang.ruby)
  • Re: Comment on how to uniquely track your objects in C# / hash table / get hash code
    ... Array, correct? ... This is largely irrelevant to the issue of performance, since hash ... where both insertions and lookups happen frequently, ... about fast lookups for balanced red/black binary trees. ...
    (microsoft.public.dotnet.languages.csharp)
Quantcast