DBM_Filter::null (3)
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NAME
DBM_Filter::null - filter for DBM_FilterSYNOPSIS
use SDBM_File; # or DB_File, GDBM_File, NDBM_File, or ODBM_File use DBM_Filter ; $db = tie %hash, ... $db->Filter_Push('null');
DESCRIPTION
This filter ensures that all data written to theDBM
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.