C - Write program to display printable characters plus white space names

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Requirements

Write program to display printable characters plus white space names

Output the appropriate name, such as "newline", "space", "tab", and so on, for each whitespace character.

Hint

You can use the isgraph() function from ctype.h to determine when a character is printable.

Demo

#include <stdio.h>
#include <ctype.h>

int main(void)
{
  char ch = 0;                       /* Character code value */
  for(int i = 0 ; i < 128 ; ++i)
  {/*w  w  w.j a v a2s . co m*/
    ch = (char)i;
    if(i%2 == 0)
      printf("\n");
    printf("  %4d",ch);
    if(isgraph(ch))
      printf("               %c",ch);
    else
    {
      switch(ch)
      {
        case '\n':
           printf("         newline",ch);
           break;
        case ' ':
           printf("           space",ch);
           break;
        case '\t':
           printf("  horizontal tab",ch);
           break;
        case '\v':
           printf("    vertical tab",ch);
           break;
         case '\f':
           printf("       form feed",ch);
           break;
        default:
           printf("                ");
           break;
      }
    }

  }
  printf("\n");
  return 0;
}

Result

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