Yes and no. I think that if you understand the concept of pointers, then
you will be able to understand references more easily, but from what keep
hearing from c/c++ people, there are differences. Perhaps someone else on
the list can clarify more.
One thing that Perl can do with references that I don't _think_ you can do
in C is the concept of anonymous data structures. Take this as an example.
my @arrayOfHashes = ();
push(@arrayOfHashes, {first => 'foo', second => 'bar', third =>
'nuts'});
I've now added an element to @arrayOfHashes which is a pointer to an
anonymous hash containing three keys. I can then access the hash like this:
foreach(@arrayOfHashes){
print "The first is $->{first}\n";
print "The second is ${$_}{second}\n";
}
The first example accesses the key indirectly, and the second one
dereferences the $_ variable first. In the second example, we could refer
to the hash as %{$_}.
-----Original Message-----
From: christopher j bottaro [mailto:[EMAIL PROTECTED]]
Sent: Friday, December 06, 2002 11:58 AM
To: [EMAIL PROTECTED]
Subject: references in perl...
hello,
i'm a c/c++ programmer trying to learn perl. there are just some things
that
are much more easily done in a language like perl than in c/c++ i've found
out...=) anyways, i'm reading a short tutorial about references. am i
wrong
in thinking they are like pointers in c/c++?
-- christopher
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