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

Sales of this book support The Perl Foundation! Get a printed copy>>>

Can't use "when" outside a topicalizer

(F) You have used a when() block that is neither inside a foreach loop nor a given block. (Note that this error is issued on exit from the when block, so you won't get the error if the match fails, or if you use an explicit continue.)

ISBN 9781906966027Perl Language Reference ManualSee the print edition