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# PLHashTable
(plhashtable-syntax)=
## Syntax
```{code}
#include <plhash.h>
typedef struct PLHashTable PLHashTable;
```
(plhashtable-description)=
## Description
The opaque `PLHashTable` structure represents a hash table. Entries in
the table have the type `PLHashEntry` and are organized into buckets.
The number of buckets in a hash table may be changed by the library
functions during the lifetime of the table to optimize speed and space.
A new hash table is created by the {ref}`PL_NewHashTable` function, and
destroyed by the {ref}`PL_HashTableDestroy` function.