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Postings from April 2002
On Tue, 2002-04-30 at 00:22, drieux wrote:
>
> On Monday, April 29, 2002, at 08:29 , Chas Owens wrote:
>
> >
> > TMTOWTDI:
> >
> > my @array = qw(first second last);
> > my %hash;
> > #the $" var controls what characters separate elements of
> > #an interpolated array
> > { local $" = '|'; $hash{somekey} = "@array"; }
>
> can You get Your Brilliant Flashes in Gear....
>
> remember that you need to remind folks that this deconstructs with:
>
> my @chas_array = split(/\|/, $hash{$chas});
>
> updated:
>
> http://www.wetware.com/drieux/CS/lang/Perl/Beginners/BenchMarks/loopVjoin.
> txt
>
> actually it's in the contenders list....
It should be nearly identical to the straight join since this code:
$hash{key} = "@array";
is turned into this code
$hash{key} = join $", @array;
by the compiler.
>
> Geez Chas, If you're Gonna Whine - whould you get there on time:
> Benchmark: timing 50000 iterations of aref, chasNeff, j2ref, join, join2,
> jref, loop, loop3...
> chasNeff: 56 wallclock secs (51.34 usr + 0.00 sys = 51.34 CPU) @ 973.90/
> s (n=50000)
> join: 55 wallclock secs (49.95 usr + 0.00 sys = 49.95 CPU) @
> 1001.00/s (n=50000)
> join2: 55 wallclock secs (51.08 usr + 0.00 sys = 51.08 CPU) @ 978.86/
> s (n=50000)
> jref: 35 wallclock secs (31.69 usr + 0.00 sys = 31.69 CPU) @
> 1577.78/s (n=50000)
>
> ......
>
> ciao
> drieux
>
> ---
>
> Come on Chas - what is it, some outside experience,
> some hot date that takes precedence over Perl.....
Sleep dep + compiling Linux from scratch on my laptop while
simultaneously working on production problems and posting fscked up
comments to this list and the Gtk Perl list.
>
>
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>
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