int
main (void)
{
/* This test validates that stderr is used correctly, so move the
original into fd 10. */
if (dup2 (STDERR_FILENO, BACKUP_STDERR_FILENO) != BACKUP_STDERR_FILENO
|| (myerr = fdopen (BACKUP_STDERR_FILENO, "w")) == NULL)
return 2;
ASSERT (freopen ("test-getopt.tmp", "w", stderr) == stderr);
/* These default values are required by POSIX. */
ASSERT (optind == 1);
ASSERT (opterr != 0);
setenv ("POSIXLY_CORRECT", "1", 1);
test_getopt ();
#if GNULIB_TEST_GETOPT_GNU
test_getopt_long_posix ();
#endif
unsetenv ("POSIXLY_CORRECT");
test_getopt ();
#if GNULIB_TEST_GETOPT_GNU
test_getopt_long ();
test_getopt_long_only ();
#endif
ASSERT (fclose (stderr) == 0);
ASSERT (remove ("test-getopt.tmp") == 0);
return 0;
}
int main(int argc, char **argv)
{
printf("Begin test getopt.\n");
printf("getopt_long输出：\n");
test_getopt_long(argc, argv);
return 0;
}
int
main ()
{
unsetenv ("POSIXLY_CORRECT");
test_getopt ();
#if GNULIB_GETOPT_GNU
test_getopt_long ();
#endif
return 0;
}
