8 for(s = "0123456789abcdefABCDEF"; *s;s++)
10 printf("error isxdigit(%c)\n",*s);
14 for(s = "0123456789"; *s;s++)
16 printf("error isdigit(%c)\n",*s);
20 for(s = "abcdefghigklmnopqrstuvwxyz"; *s;s++)
22 printf("error islower(%c)\n",*s);
26 for(s = "abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ"; *s;s++)
28 printf("error isalpha(%c)\n",*s);
32 for(s = "0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ"; *s;s++)
34 printf("error isalnum(%c)\n",*s);