t-set.c
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上传日期:2022-08-06
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- /* Test mpf_set.
- 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"
- void
- check_reuse (void)
- {
- /* Try mpf_set(f,f) when f is bigger than prec. In the past this had
- resulted in an MPN_COPY with invalid operand overlap. */
- mpf_t f;
- mp_size_t limbs = 20;
- unsigned long bits = limbs * GMP_NUMB_BITS;
- mpf_init2 (f, bits);
- refmpf_fill (f, limbs, GMP_NUMB_MAX);
- mpf_set_prec_raw (f, bits / 2);
- mpf_set (f, f);
- MPF_CHECK_FORMAT (f);
- mpf_set_prec_raw (f, bits);
- mpf_clear (f);
- }
- int
- main (void)
- {
- tests_start ();
- check_reuse ();
- tests_end ();
- exit (0);
- }