The only problem with using the magical goto is that for some reason it is incredibly slow.

If performance isn't an issue, then it's fine, but if performance is an issue avoid it like the plague:) 

#! perl -slw
use strict;
use Benchmark qw[cmpthese];

sub recipe{ my @rice = @_; my $grains = scalar @rice; return $grains; 
+}

sub curry { recipe( 'extra', @_) }

sub spagetti { unshift @_, 'extra'; goto &recipe; }

print recipe    qw[1 2 3 4 5 6 7 8 9 0];
print curry        qw[1 2 3 4 5 6 7 8 9 0];
print spagetti    qw[1 2 3 4 5 6 7 8 9 0];

cmpthese( -10, {
    recipe    =>    'recipe qw[1 2 3 4 5 6 7 8 9 0];',
    curry    =>    'curry  qw[1 2 3 4 5 6 7 8 9 0];',
    spagetti=>    'spagetti qw[1 2 3 4 5 6 7 8 9 0];',
});

__END__
c:\test>225691
10
11
11
Benchmark:
running
 curry, recipe, spagetti
, each for at least 10 CPU seconds
...

     curry: 11 wallclock secs (10.41 usr +  0.00 sys = 10.41 CPU) @ 11
+838.29/s (n=123284)

    recipe: 10 wallclock secs (10.29 usr +  0.00 sys = 10.29 CPU) @ 15
+358.48/s (n=157962)

  spagetti:  9 wallclock secs (10.31 usr +  0.00 sys = 10.31 CPU) @ 75
+02.96/s (n=77393)

            Rate spagetti    curry   recipe
spagetti  7503/s       --     -37%     -51%
curry    11838/s      58%       --     -23%
recipe   15358/s     105%      30%       --

c:\test>

[download]

Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

In reply to Re: Re: subref with stored argument? by BrowserUk
in thread subref with stored argument? by Flame

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