t-hightomask.c
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上传日期:2022-08-06
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- /* Test LIMB_HIGHBIT_TO_MASK.
- Copyright 2004 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or (at your
- option) any later version.
- The GNU MP Library is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
- #include <stdio.h>
- #include <stdlib.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- /* There's very little to these tests, but it's nice to have them since if
- something has gone wrong with the arithmetic right shift business in
- LIMB_HIGHBIT_TO_MASK then the only symptom is likely to be failures in
- udiv_qrnnd_preinv, which would not be easy to diagnose. */
- int
- main (void)
- {
- ASSERT_ALWAYS (LIMB_HIGHBIT_TO_MASK (0) == 0);
- ASSERT_ALWAYS (LIMB_HIGHBIT_TO_MASK (GMP_LIMB_HIGHBIT) == MP_LIMB_T_MAX);
- ASSERT_ALWAYS (LIMB_HIGHBIT_TO_MASK (MP_LIMB_T_MAX) == MP_LIMB_T_MAX);
- ASSERT_ALWAYS (LIMB_HIGHBIT_TO_MASK (GMP_LIMB_HIGHBIT >> 1) == 0);
- ASSERT_ALWAYS (LIMB_HIGHBIT_TO_MASK (MP_LIMB_T_MAX >> 1) == 0);
- exit (0);
- }