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Re^2: Behaviour of unpack() with the Z template

by johngg (Canon)
on Feb 08, 2017 at 10:45 UTC ( #1181400=note: print w/replies, xml ) Need Help??


in reply to Re: Behaviour of unpack() with the Z template
in thread Behaviour of unpack() with the Z template

I agree that the actual behaviour is "symmetric" and that makes sense from a design point of view. I confirmed the behaviour of the test you ran

johngg@shiraz:~/perl > perl -Mstrict -Mwarnings -E ' my $pck = pack q{Z*C}, q{test}, 0x41; my( $str, $ch ) = unpack q{Z*a}, $pck; say qq{$str, $ch};' test, A

I don't think the documentation has a problem with the "A" or "a" descriptions but the "Z" one should be clarified. An alternative to my suggestion in the above might be Z returns everything up to but not including the first null.

Cheers,

JohnGG

Replies are listed 'Best First'.
Re^3: Behaviour of unpack() with the Z template
by andal (Hermit) on Feb 11, 2017 at 10:55 UTC

    Yes, you right, looks like I've done tests for "A*" incorrectly.

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