```{index} single: Memoize::NDBM_File ``` # Memoize::NDBM_File Memoize::NDBM\_File - glue to provide EXISTS for NDBM\_File for Storable use ## DESCRIPTION This class provides [EXISTS](https://perldoc.perl.org/perltie) support for [NDBM\_File](../NDBM_File.md). [In Perl 5.37.3](https://github.com/Perl/perl5/commit/c0a1a377c02ed789f5eff667f46a2314a05c5a4c), support for `EXISTS` was added to [NDBM\_File](../NDBM_File.md) itself. Any code which already requires perl >= 5.37.3 should be rewritten to use [NDBM\_File](../NDBM_File.md) directly.