set_z.c
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上传日期:2022-08-06
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- /* mpq_set_z (dest,src) -- Set DEST to SRC.
- Copyright 1996, 2001 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 "gmp.h"
- #include "gmp-impl.h"
- void
- mpq_set_z (mpq_ptr dest, mpz_srcptr src)
- {
- mp_size_t num_size;
- mp_size_t abs_num_size;
- num_size = src->_mp_size;
- abs_num_size = ABS (num_size);
- if (dest->_mp_num._mp_alloc < abs_num_size)
- _mpz_realloc (&(dest->_mp_num), abs_num_size);
- MPN_COPY (dest->_mp_num._mp_d, src->_mp_d, abs_num_size);
- dest->_mp_num._mp_size = num_size;
- dest->_mp_den._mp_d[0] = 1;
- dest->_mp_den._mp_size = 1;
- }