/*
 * File: while_loop.c
 * Author: D. Sheets
 * Description: Example of using while loop
 */

#include <stdio.h>

int main(void)
{
  char input = '0';
  /* The test inside the while loop is tested BEFORE the code inside
   * the loop will execute. So if we initialized input to 'x' in the
   * line above, the code inside the while loop will never execute.
   */
  while(input != 'x')
  {
    /* The following code will execute once */
    char cr;
    printf("Type x to exit\n");
    scanf("%c%c", &input, &cr);
    /* After the code is executed, the code will return to the beginning
     * of the while loop and re-check the test condition. As long as the
     * test condition is true, the code inside the while loop will
     * continue to execute.
     */
  }

  /* When we reach this code, input must have been == to 'x' */
  return(0);
}