gcc/testsuite/gcc.c-torture/compile/991026-2.c

   1 typedef int __pid_t;
   2 extern __pid_t fork  (void)    ;
   3 extern int printf  (__const char *__restrict __format, ...)    ;
   4 extern char *strerror  (int __errnum)    ;
   5 extern int errno;
   6 extern int *__errno_location  (void)     __attribute__ ((__const__));
   7 extern void _exit  (int __status)   __attribute__ ((__noreturn__));
   8 extern void exit  (int __status)     __attribute__ ((__noreturn__));
   9 extern int close  (int __fd)    ;
  10 extern int dup  (int __fd)    ;
  11 extern int open  (__const char *__file, int __oflag, ...)    ;
  12
  13
  14 char    myname[]="foo";
  15
  16 detach()
  17 {
  18         switch(fork()) {
  19             case -1:
  20                 printf("%s: Error: fork - %s\n",myname, strerror((*__errno_location ()) ));
  21                 exit(255);
  22             case 0:
  23
  24                 close(0);
  25                 close(1);
  26                 close(2);
  27                 dup(dup(open("/dev/null", 02 )));
  28                 return;
  29             default:
  30
  31                 _exit(0);
  32         }
  33 }