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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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(in cleanup) %s

(W misc) This prefix usually indicates that a DESTROY() method raised the indicated exception. Since destructors are usually called by the system at arbitrary points during execution, and often a vast number of times, the warning is issued only once for any number of failures that would otherwise result in the same message being repeated.

Failure of user callbacks dispatched using the G_KEEPERR flag could also result in this warning. See "G_KEEPERR" (perlcall) in the Perl C API and Internals Manual.

ISBN 9781906966027Perl Language Reference ManualSee the print edition