1/* mpq_set_num(dest,num) -- Set the numerator of DEST from NUM.
2
3Copyright 1991, 1994, 1995, 2001 Free Software Foundation, Inc.
4
5This file is part of the GNU MP Library.
6
7The GNU MP Library is free software; you can redistribute it and/or modify
8it under the terms of the GNU Lesser General Public License as published by
9the Free Software Foundation; either version 3 of the License, or (at your
10option) any later version.
11
12The GNU MP Library is distributed in the hope that it will be useful, but
13WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
15License for more details.
16
17You should have received a copy of the GNU Lesser General Public License
18along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
19
20#include "gmp.h"
21#include "gmp-impl.h"
22
23void
24mpq_set_num (MP_RAT *dest, const MP_INT *num)
25{
26  mp_size_t size = num->_mp_size;
27  mp_size_t abs_size = ABS (size);
28
29  if (dest->_mp_num._mp_alloc < abs_size)
30    _mpz_realloc (&(dest->_mp_num), abs_size);
31
32  MPN_COPY (dest->_mp_num._mp_d, num->_mp_d, abs_size);
33  dest->_mp_num._mp_size = size;
34}
35