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Perl Language Reference Manual
by Larry Wall and others
Paperback (6"x9"), 724 pages
ISBN 9781906966027
RRP £29.95 ($39.95)

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Can't declare class for non-scalar %s in "%s"

(F) Currently, only scalar variables can be declared with a specific class qualifier in a "my", "our" or "state" declaration. The semantics may be extended for other types of variables in future.

ISBN 9781906966027Perl Language Reference ManualSee the print edition