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Dear Monks,

What's the most efficient way to create and reference a key only hash (In general, but specifically in a mod-perl environment)? Is it:

#!/usr/bin/perl -w use strict; my %hash1 = ( shave => '', the => '', modern => '', way => '', ); my %hash2 = ( shave => 1, the => 1, modern => 1, way => 1, ); my $word = 'modern'; if( exists($hash1{$word}) ) { print "Word $word is in hash1\n"; } if( $hash2{$word} ) { print "Word $word is in hash2\n"; }
I am aware of  perl is a profligate wastrel when it comes to memory use. But the -DL and warn(!!!) hacks don't work on my Perl v5.8.8. I don't get any memory debugging with:
export PERL_DEBUG_MSTATS=1 perl test_hasheffeciency.pl

In reply to Effecicncy of key-only hash by brycen

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