---
name: "PerlX::Define"
section: "3pm"
platform: "linux"
package: "libperlx-define-perl"
version: "0.101-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/PerlX::Define"
---

# PerlX::Define(3pm)

cute syntax for defining constants

## NAME

PerlX::Define - cute syntax for defining constants

## SYNOPSIS

```
   use v5.12;
   use strict;
   use warnings;

   package MyMaths {
      use PerlX::Define;
      define PI = 3.2;
   }
```

## DESCRIPTION

PerlX::Define is a yet another module for defining constants.

Differences from constant.pm:

- •

  Cute syntax.

  Like constant.pm, constants get defined at compile time, not run time.

- •

  Requires Perl 5.12 or above.

  If you're lucky enough to be able to free yourself from the shackles of supporting decade-old versions of Perl, PerlX::Define is your friend.

- •

  Only supports scalar constants.

  List constants are rarely useful.

  Your constant can of course be a reference to an array or hash, but this module doesn't attempt to make the referred-to structure read only.

- •

  Doesn't try to handle some of the things constant.pm does like declaring constants using fully-qualified names, or defining constants pointing at magic scalars.

Prior to version 0.100, PerlX::Define was bundled with Moops.

## BUGS

Please report any bugs to \<http://rt.cpan.org/Dist/Display.html?Queue=PerlX-Define\>.

## SEE ALSO

constant.

Moops.

## AUTHOR

Toby Inkster \<tobyink@cpan.org\>.

## COPYRIGHT AND LICENCE

This software is copyright (c) 2013-2014, 2018 by Toby Inkster.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

## DISCLAIMER OF WARRANTIES

THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.