---
name: "Zonemaster::LDNS::RRList"
section: "3pm"
platform: "linux"
package: "libzonemaster-ldns-perl"
version: "4.1.0+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Zonemaster::LDNS::RRList"
---

# Zonemaster::LDNS::RRList(3pm)

class representing lists of resource records.

## NAME

Zonemaster::LDNS::RRList - class representing lists of resource records.

## SYNOPSIS

```
    my $rrlist = Zonemaster::LDNS::RRList->new( $rrs_aref );
```

## CLASS METHODS

- **new()**

  Creates a new empty Zonemaster::LDNS::RRList object.

- new($rrs)

  Creates a new Zonemaster::LDNS::RRList object for the given resource records.

  Takes a reference to an array of Zonemaster::LDNS::RR objects.

  Returns a Zonemaster::LDNS::RRList object.

## INSTANCE METHODS

- **count()**

  Returns the number of RRs in the list.

- compare($other)

  Compares two Zonemaster::LDNS::RRList. The order of Zonemaster::LDNS::RR objects in the list does not matter. The TTL field is ignored, and the comparison of domain names is case insensitive.

  Returns an integer, where 0 indicates equality.

- get($pos)

  ```
      my $rr = Zonemaster::LDNS::RRList->get( 0 );
  ```

  Retrieves the RR in the given position from the list.

  Takes an integer.

  Returns a Zonemaster::LDNS::RR object, or `"undef"` if there was no RR.

- push($rr)

  Pushes an RR onto the list.

- **pop()**

  Pops an RR off the list.

- **is\_rrset()**

  Returns true or false depending on if the list is an RRset or not.

  Note that the underlying LDNS function appears to have a bug as the comparison of the owner name field is case sensitive. See https://github.com/NLnetLabs/ldns/pull/251.

- **string()**

  Returns a string with the list of RRs in presentation format.

- do\_compare($other)

  Calls the XS `"compare"` method with the arguments it needs, rather than the ones overloading gives.

- to\_string

  Calls the XS `"string"` method with the arguments it needs, rather than the ones overloading gives. Functionally identical to **string()** from the Perl level, except for being a tiny little bit slower.

## POD ERRORS

Hey! **The above document had some coding errors, which are explained below:**

- Around line 40:

  '=item' outside of any '=over'