test-ctype.c

   1 #include "cache.h"
   2
   3
   4 static int test_isdigit(int c)
   5 {
   6         return isdigit(c);
   7 }
   8
   9 static int test_isspace(int c)
  10 {
  11         return isspace(c);
  12 }
  13
  14 static int test_isalpha(int c)
  15 {
  16         return isalpha(c);
  17 }
  18
  19 static int test_isalnum(int c)
  20 {
  21         return isalnum(c);
  22 }
  23
  24 #define DIGIT "0123456789"
  25 #define LOWER "abcdefghijklmnopqrstuvwxyz"
  26 #define UPPER "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
  27
  28 static const struct ctype_class {
  29         const char *name;
  30         int (*test_fn)(int);
  31         const char *members;
  32 } classes[] = {
  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 },
  37         { NULL }
  38 };
  39
  40 static int test_class(const struct ctype_class *test)
  41 {
  42         int i, rc = 0;
  43
  44         for (i = 0; i < 256; i++) {
  45                 int expected = i ? !!strchr(test->members, i) : 0;
  46                 int actual = test->test_fn(i);
  47
  48                 if (actual != expected) {
  49                         rc = 1;
  50                         printf("%s classifies char %d (0x%02x) wrongly\n",
  51                                test->name, i, i);
  52                 }
  53         }
  54         return rc;
  55 }
  56
  57 int main(int argc, char **argv)
  58 {
  59         const struct ctype_class *test;
  60         int rc = 0;
  61
  62         for (test = classes; test->name; test++)
  63                 rc |= test_class(test);
  64
  65         return rc;
  66 }