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+PRUintn
+=======
+
+This (unsigned) type is one of the most appropriate for automatic
+variables. It is guaranteed to be at least 16 bits, though various
+architectures may define it to be wider (for example, 32 or even 64
+bits). This types is never valid for fields of a structure.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prtypes.h>
+
+   typedef unsigned int PRUintn;