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diff --git a/docs/nspr/reference/plhashcomparator.rst b/docs/nspr/reference/plhashcomparator.rst new file mode 100644 index 0000000000..1310a6f37d --- /dev/null +++ b/docs/nspr/reference/plhashcomparator.rst @@ -0,0 +1,41 @@ +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` |