Creating References

• A reference is a datum whose value is the location of another datum
• Like a C pointer, sort of
• Just a scalar, a fundamental data type
• To create a reference, precede the variable with a '\', e.g.:

  # create some basic data $part = 'sparkplug'; @inventory = ('batteries', 'fluids', 'bolts'); %lunch = ( monday => 'soup', tuesday => 'sandwich' ); # now create references to this data $ref_part = \$part; $ref_inventory = \@inventory; $ref_lunch = \%lunch;

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Updated Wednesday, 31-Oct-2001 14:22:37 CST

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