Re: Pack and Unpack are Broken for > 0x7FFF_FFFF (in 5.10.0)

[email protected] (Chris Hall) Sun, 16 Mar 2008 15:49:27 +0000

Newsgroups	perl.unicode
Message-ID	<[email protected]>

On Sun, 16 Mar 2008 I wrote
....
>Consider:
>
>  use warnings ;
>
>  sub sp {
>    my ($v) = @_ ;
>
>    my $p = pack('U', $v) ;
>    my @t = unpack('C*', $p) ;
>
>    printf '\x%04X_%04X: ', ($v >> 16), $v & 0xFFFF ;
>    print map sprintf('\x%02X', $_), @t ;
>    print "\n" ;
>  } ;
...
 >  sp(0x7FFF_FFFF) ;

...
>v5.8.8 result:
>
>  \x7FFF_FFFD: \xFD\xBF\xBF\xBF\xBF\xBD
...
>v5.10.0 result:
>
>  \x7FFF_FFFD: \x7FFFFFFD

I didn't see this in all the clutter of warnings.

I thought 'C' worked on Octets ?  Which is what 5.8.8 appears to be 
doing, but not 5.10.0.

Chris
-- 
Chris Hall               highwayman.com

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