/* ctype.c - Don Yang (uguu.org)

   03/18/04
                                                                           */
#include<ctype.h>
#include<stdio.h>


int main(void)
{
   char *label[2] = {"true ", "false"};
   int i;

   (void)puts("      isspace isalpha isalnum isdigit tolower toupper");
   for(i = 0; i < 256; i++)
   {
      printf("%3d:  %s   %s   %s   %s   %3d     %3d\n", i,
         isspace(i) ? label[0] : label[1],
         isalpha(i) ? label[0] : label[1],
         isalnum(i) ? label[0] : label[1],
         isdigit(i) ? label[0] : label[1],
         tolower(i), toupper(i));
   }
   return 0;
}