This benchmark indicates that you are wrong. 
sub ENABLE_DEBUG () { 0 }
sub debug_inelegant { print $_[0]; }
sub debug_elegant { print $_[0] if ENABLE_DEBUG; }

use Benchmark qw(:all) ;

cmpthese( 30000000, 
    { 
        'inelegant' => "debug_inelegant 'test' if ENABLE_DEBUG;",
        'elegant'   => "debug_elegant 'test';"
    },
);

[download]
Output: 
                Rate   elegant inelegant
elegant    3337041/s        --      -95%
inelegant 62500000/s     1773%        --

[download]

--Dan

In reply to Re^2: Optimize debugging subs by danb
in thread Optimize debugging subs by danb

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