31     result = slQueryNumSupportedEngineInterfaces(NULL);  in main()
36     assert(engine_ids != NULL);  in main()
38     assert(engine_req != NULL);  in main()
55         result = slQuerySupportedEngineInterfaces(index, NULL);  in main()
63         result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces, engine_ids, NULL);  in main()
65         assert(NULL == engineObject);  in main()
66         result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces, NULL, engine_req);  in main()
68         assert(NULL == engineObject);  in main()
72     result = slCreateEngine(NULL, 0, NULL, numSupportedInterfaces, engine_ids, engine_req);  in main()
76     SLInterfaceID null_id[1] = {NULL};  in main()
78     result = slCreateEngine(&engineObject, 0, NULL, 1, null_id, null_req);  in main()
80     assert(NULL == engineObject);  in main()
83     result = slCreateEngine(&engineObject, 1, NULL, 0, NULL, NULL);  in main()
85     assert(NULL == engineObject);  in main()
91     result = slCreateEngine(&engineObject, 1, options, 0, NULL, NULL);  in main()
93     assert(NULL == engineObject);  in main()
98     result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces+1, engine_ids,  in main()
101     assert(NULL == engineObject);  in main()
116         void *interface = NULL;  in main()
130     result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces, engine_ids, engine_req);  in main()
140         void *interface = NULL;  in main()
145         void *interface_again = NULL;  in main()
156     result = slCreateEngine(&engineObject2, 0, NULL, 0, NULL, NULL);  in main()
158     assert(NULL == engineObject2);  in main()
165     result = slCreateEngine(&engineObject2, 0, NULL, 0, NULL, NULL);  in main()