26     printf("Get number of available engine interfaces\n");  in main()
34     printf("Engine number of supported interfaces %u\n", numSupportedInterfaces);  in main()
40     printf("Display the ID of each available interface\n");  in main()
48             printf("interface[%u] ", index);  in main()
59     printf("Create an engine and request all available interfaces\n");  in main()
62         printf("Create engine with numSupportedInterfaces > 0 but NULL pointers\n");  in main()
71     printf("Create engine with no place to return the new engine object\n");  in main()
75     printf("Create engine with NULL interface pointer\n");  in main()
82     printf("Create an engine with numOptions > 0 but NULL pointer\n");  in main()
90     printf("Create engine with non-sensical option\n");  in main()
95     printf("Create an engine and require non-sensical volume interface\n");  in main()
103     printf("Create an engine and politely request a non-sensical interface with options\n");  in main()
112     printf("Engine object %p\n", engineObject);  in main()
114     printf("Get each available interface before realization\n");  in main()
121             printf("interface available pre-realize: ");  in main()
126     printf("Destroy engine before realization\n");  in main()
129     printf("Create engine again\n");  in main()
132     printf("Engine object %p\n", engineObject);  in main()
134     printf("Realize the engine\n");  in main()
138     printf("Get each available interface after realization\n");  in main()
143         printf("interface[%u] %p = ", index, interface);  in main()
152         printf("copy = ");  in main()
158     printf("Create too many engines\n");  in main()
164     printf("Destroy engine\n");  in main()
167     printf("Now should be able to create another engine\n");  in main()
171     printf("Exit without destroying engine -- examine log for expected error message\n");  in main()