Section: Perl Programmers Reference Guide (3pm)
DBM_Filter::null - filter for DBM_Filter
use SDBM_File; # or DB_File, GDBM_File, NDBM_File, or ODBM_File
use DBM_Filter ;
$db = tie %hash, ...
This filter ensures that all data written to the DBM
file is null
terminated. This is useful when you have a perl script that needs
to interoperate with a DBM
file that a C program also uses. A fairly
common issue is for the C application to include the terminating null
in a string when it writes to the DBM
file. This filter will ensure that
all data written to the DBM
file can be read by the C application.
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