1 /* mpq_set_den(dest,den) -- Set the denominator of DEST from DEN.
2 If DEN < 0 change the sign of the numerator of DEST.
4 Copyright (C) 1991 Free Software Foundation, Inc.
6 This file is part of the GNU MP Library.
8 The GNU MP Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 The GNU MP Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with the GNU MP Library; see the file COPYING. If not, write to
20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
27 mpq_set_den (MP_RAT *dest, const MP_INT *den)
29 mpq_set_den (dest, den)
34 mp_size size = den->size;
35 mp_size abs_size = ABS (size);
37 if (dest->den.alloc < abs_size)
38 _mpz_realloc (&(dest->den), abs_size);
40 MPN_COPY (dest->den.d, den->d, abs_size);
41 dest->den.size = abs_size;
43 /* The denominator is always positive; move the sign to the numerator. */
45 dest->num.size = -dest->num.size;