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+PL_HashTableAdd
+===============
+
+Add a new entry with the specified key and value to the hash table.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <plhash.h>
+
+   PLHashEntry *PL_HashTableAdd(
+     PLHashTable *ht,
+     const void *key,
+     void *value);
+
+
+Parameters
+~~~~~~~~~~
+
+The function has the following parameters:
+
+``ht``
+   A pointer to the the hash table to which to add the entry.
+``key``
+   A pointer to the key for the entry to be added.
+``value``
+   A pointer to the value for the entry to be added.
+
+
+Returns
+~~~~~~~
+
+A pointer to the new entry.
+
+
+Description
+-----------
+
+Add a new entry with the specified key and value to the hash table.
+
+If an entry with the same key already exists in the table, the
+``freeEntry`` function is invoked with the ``HT_FREE_VALUE`` flag. You
+can write your ``freeEntry`` function to free the value of the specified
+entry if the old value should be freed. The default ``freeEntry``
+function does not free the value of the entry.
+
+:ref:`PL_HashTableAdd` returns ``NULL`` if there is not enough memory to
+create a new entry. It doubles the number of buckets if the table is
+overloaded.