30     void *map;  in main()  local
50     map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0);  in main()
51     assert(map != MAP_FAILED);  in main()
52     rc = memcmp(src, map, sizeof(src));  in main()
59     rc = memcmp(src, map, sizeof(src));  in main()
65     rc = memcmp(src, map, sizeof(src));  in main()
71     rc = memcmp(src, map, sizeof(src));  in main()
77     rc = memcmp(src, map, sizeof(src));  in main()
86     map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0);  in main()
87     assert(map != MAP_FAILED);  in main()
88     rc = memcmp(src, map, sizeof(src));  in main()
91     munmap(map, sizeof(src));  in main()