dotest
errors += dotest(_IOFBF, iobuf, sizeof(iobuf));
errors += dotest(_IOLBF, iobuf, sizeof(iobuf));
errors += dotest(_IONBF, NULL, 0);
failures += dotest(&test_vectors[i]);
return dotest(argc, argv, tests);
int dotest(int argc, char *argv[], const struct test *tests);
return dotest(argc, argv, tests);
dotest(-1, len, MAP_ANON|MAP_PRIVATE);
dotest(-1, len, MAP_ANON|MAP_SHARED);
dotest(fd, len, MAP_FILE|MAP_PRIVATE);