+ if (argc != 2)
+ {
+ fprintf (stderr, "exactly one argument required; use --help for help\n");
+ return EXIT_FAILURE;
+ }
+ else if (!strcmp (argv[1], "--help"))
+ {
+ printf ("%s: test sparse array library\n"
+ "usage: %s TEST-NAME\n"
+ "where TEST-NAME is one of the following:\n",
+ argv[0], argv[0]);
+ for (i = 0; i < N_TESTS; i++)
+ printf (" %s\n %s\n", tests[i].name, tests[i].description);
+ return 0;
+ }
+ else
+ {
+ for (i = 0; i < N_TESTS; i++)
+ if (!strcmp (argv[1], tests[i].name))
+ {
+ tests[i].function ();
+ return 0;
+ }
+
+ fprintf (stderr, "unknown test %s; use --help for help\n", argv[1]);
+ return EXIT_FAILURE;
+ }