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+PR_ASSERT
+=========
+
+Terminates execution when a given expression is ``FALSE``.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prlog.h>
+
+   void PR_ASSERT ( expression );
+
+
+Parameters
+~~~~~~~~~~
+
+The macro has this parameter:
+
+expression
+   Any valid C language expression that evaluates to ``TRUE`` or
+   ``FALSE``.
+
+
+Returns
+~~~~~~~
+
+Nothing
+
+
+Description
+-----------
+
+This macro evaluates the specified expression. When the result is zero
+(``FALSE``) the application terminates; otherwise the application
+continues. The macro converts the expression to a string and passes it
+to ``PR_Assert``, using file and line parameters from the compile-time
+environment.
+
+This macro compiles to nothing if compile-time options are not specified
+to enable logging.