// this program prints the ASCII code for different characters
// that the user inputs. The program exits when the user enters 
// the character 'x'.

#include <stdio.h>


int main()
{
  while(1)
  {
    char c;

    // fflush removes the <ENTER> character that remains to read, after the user 
    // has entered a character. Also, if the user enters more than one
    // character in a line, fflush discards all characters except for the
    // first one.
    // To experiment, compare with what happens
    // when you comment out the fflush line.
    // note: this trick does not work with g++ (if you use Visual C++,
    // ignore this note).

    fflush(stdin);
    printf("enter a character: ");
    scanf("%c", &c);
   
    printf("the number corresponding to %c is %d\n\n", c, (int) c);
    if (c == 'x')
    {
      break;
    }
  }
}