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-package SDBM_File;
-
-use strict;
-use warnings;
-
-require Tie::Hash;
-use XSLoader ();
-
-our @ISA = qw(Tie::Hash);
-our $VERSION = "1.03" ;
-
-XSLoader::load 'SDBM_File', $VERSION;
-
-1;
-
-__END__
-
-=head1 NAME
-
-SDBM_File - Tied access to sdbm files
-
-=head1 SYNOPSIS
-
- use Fcntl; # For O_RDWR, O_CREAT, etc.
- use SDBM_File;
-
- tie(%h, 'SDBM_File', 'filename', O_RDWR|O_CREAT, 0666)
- or die "Couldn't tie SDBM file 'filename': $!; aborting";
-
- # Now read and change the hash
- $h{newkey} = newvalue;
- print $h{oldkey};
- ...
-
- untie %h;
-
-=head1 DESCRIPTION
-
-C<SDBM_File> establishes a connection between a Perl hash variable and
-a file in SDBM_File format;. You can manipulate the data in the file
-just as if it were in a Perl hash, but when your program exits, the
-data will remain in the file, to be used the next time your program
-runs.
-
-Use C<SDBM_File> with the Perl built-in C<tie> function to establish
-the connection between the variable and the file. The arguments to
-C<tie> should be:
-
-=over 4
-
-=item 1.
-
-The hash variable you want to tie.
-
-=item 2.
-
-The string C<"SDBM_File">. (Ths tells Perl to use the C<SDBM_File>
-package to perform the functions of the hash.)
-
-=item 3.
-
-The name of the file you want to tie to the hash.
-
-=item 4.
-
-Flags. Use one of:
-
-=over 2
-
-=item C<O_RDONLY>
-
-Read-only access to the data in the file.
-
-=item C<O_WRONLY>
-
-Write-only access to the data in the file.
-
-=item C<O_RDWR>
-
-Both read and write access.
-
-=back
-
-If you want to create the file if it does not exist, add C<O_CREAT> to
-any of these, as in the example. If you omit C<O_CREAT> and the file
-does not already exist, the C<tie> call will fail.
-
-=item 5.
-
-The default permissions to use if a new file is created. The actual
-permissions will be modified by the user's umask, so you should
-probably use 0666 here. (See L<perlfunc/umask>.)
-
-=back
-
-=head1 DIAGNOSTICS
-
-On failure, the C<tie> call returns an undefined value and probably
-sets C<$!> to contain the reason the file could not be tied.
-
-=head2 C<sdbm store returned -1, errno 22, key "..." at ...>
-
-This warning is emmitted when you try to store a key or a value that
-is too long. It means that the change was not recorded in the
-database. See BUGS AND WARNINGS below.
-
-=head1 BUGS AND WARNINGS
-
-There are a number of limits on the size of the data that you can
-store in the SDBM file. The most important is that the length of a
-key, plus the length of its associated value, may not exceed 1008
-bytes.
-
-See L<perlfunc/tie>, L<perldbmfilter>, L<Fcntl>
-
-=cut
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