4 static int test_isdigit(int c)
9 static int test_isspace(int c)
14 static int test_isalpha(int c)
19 static int test_isalnum(int c)
24 #define DIGIT "0123456789"
25 #define LOWER "abcdefghijklmnopqrstuvwxyz"
26 #define UPPER "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
28 static const struct ctype_class {
33 { "isdigit", test_isdigit, DIGIT },
34 { "isspace", test_isspace, " \n\r\t" },
35 { "isalpha", test_isalpha, LOWER UPPER },
36 { "isalnum", test_isalnum, LOWER UPPER DIGIT },
40 static int test_class(const struct ctype_class *test)
44 for (i = 0; i < 256; i++) {
45 int expected = i ? !!strchr(test->members, i) : 0;
46 int actual = test->test_fn(i);
48 if (actual != expected) {
50 printf("%s classifies char %d (0x%02x) wrongly\n",
57 int main(int argc, char **argv)
59 const struct ctype_class *test;
62 for (test = classes; test->name; test++)
63 rc |= test_class(test);