#include <stdio.h> /* standard I/O library */
#include <stdlib.h> /* C standard library */
#include <string.h> /* C strings library */
-#include <wait.h>
+#include <wait.h> /* process termination constants and functions */
#include <fcntl.h> /* file control functions */
-#include <assert.h>
+#include <assert.h> /* C assertion functions */
#include <time.h> /* date and time constants, types and functions */
#include"macros.h"