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+PR_DELETE
+=========
+
+
+Allocates memory of a specified size from the heap.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prmem.h>
+
+   void PR_DELETE(_ptr);
+
+
+Parameter
+~~~~~~~~~
+
+``_ptr``
+   The address of memory to be returned to the heap. Must be an lvalue
+   (an expression that can appear on the left side of an assignment
+   statement).
+
+
+Returns
+~~~~~~~
+
+Nothing.
+
+
+Description
+-----------
+
+This macro returns allocated memory to the heap from the specified
+location and sets ``_ptr`` to ``NULL``.