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+PLHashComparator
+================
+
+
+Syntax
+------
+
+.. code::
+
+   #include <plhash.h>
+
+   typedef PRIntn (PR_CALLBACK *PLHashComparator)(
+     const void *v1,
+     const void *v2);
+
+
+Description
+-----------
+
+:ref:`PLHashComparator` is a function type that compares two values of an
+unspecified type. It returns a nonzero value if the two values are
+equal, and 0 if the two values are not equal. :ref:`PLHashComparator`
+defines the meaning of equality for the unspecified type.
+
+For convenience, two comparator functions are provided.
+:ref:`PL_CompareStrings` compare two character strings using ``strcmp``.
+:ref:`PL_CompareValues` compares the values of the arguments v1 and v2
+numerically.
+
+
+Remark
+------
+
+The return value of :ref:`PLHashComparator` functions should be of type
+:ref:`PRBool`.
+
+
+See Also
+--------
+
+:ref:`PL_CompareStrings`, :ref:`PL_CompareValues`