Initial Windows agent repository
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38
OGP64/usr/share/perl5/5.40/Memoize/NDBM_File.pm
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38
OGP64/usr/share/perl5/5.40/Memoize/NDBM_File.pm
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use strict; use warnings;
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package Memoize::NDBM_File;
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our $VERSION = '1.16';
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use NDBM_File;
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our @ISA = qw(NDBM_File);
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# NDBM_File cannot store undef and will store an empty string if you try
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# but it does return undef if you try to read a non-existent key
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# so we can emulate exists() using defined()
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sub EXISTS {
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defined shift->FETCH(@_);
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}
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# Perl 5.37.3 adds this EXISTS emulation to NDBM_File itself
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delete $Memoize::NDBM_File::{'EXISTS'}
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if eval { NDBM_File->VERSION( '1.16' ) };
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1;
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__END__
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=pod
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=head1 NAME
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Memoize::NDBM_File - glue to provide EXISTS for NDBM_File for Storable use
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=head1 DESCRIPTION
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This class provides L<EXISTS|perltie/C<EXISTS>> support for L<NDBM_File>.
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L<In Perl 5.37.3|https://github.com/Perl/perl5/commit/c0a1a377c02ed789f5eff667f46a2314a05c5a4c>,
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support for C<EXISTS> was added to L<NDBM_File> itself.
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Code which requires such a perl should simply use L<NBDM_File> directly.
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=cut
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