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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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Relevant only if your perl executable was built with -DDEBUGGING, this controls the behavior of global destruction of objects and other references. See "PERL_DESTRUCT_LEVEL" (perlhack) in the Perl C API and Internals Manual for more information.

ISBN 9781906966027Perl Language Reference ManualSee the print edition