if test "$redirect_stdin" = no; then
  cppi $options $t.I > $t.O 2> $t.e
else
  cppi $options - < $t.I > $t.O 2> $t.e
fi
status=$?

fail=0
if test $status != $expected_status; then
  echo "unexpected return status: got $status; expected $expected_status"
  fail=1
fi

if cmp -s $t.O $t.EO; then
  :
else
  echo "unexpected results on standard output"
  echo "compare the output files (expected actual): $t.EO $t.O"
  fail=1
fi

if cmp -s $t.e $t.Ee; then
  :
else
  echo "unexpected results on standard error"
  echo "compare the error files (expected actual): $t.Ee $t.e"
  fail=1
fi

test $fail = 0 && rm -f $t.I $t.O $t.e $t.EO $t.Ee $extra_temps
exit $fail