books/apue/atexit.c

   1 /*
   2  * atexit() example usage
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7
   8 static void my_exit1(void)
   9 {
  10         printf("first exit handler\n");
  11 }
  12
  13 static void my_exit2(void)
  14 {
  15         printf("second exit handler\n");
  16 }
  17
  18 int main(void)
  19 {
  20         if (atexit(my_exit2) != 0)
  21                 fprintf(stderr, "can't register my_exit2");
  22         if (atexit(my_exit1) != 0)
  23                 fprintf(stderr, "can't register my_exit1");
  24         if (atexit(my_exit1) != 0)
  25                 fprintf(stderr, "can't register my_exit1");
  26
  27         printf("main is done\n");
  28         return 0;
  29 }