1 /* mpz_lcm_ui -- least common multiple of mpz and ulong.
3 Copyright 2001, 2002, 2004 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
26 mpz_lcm_ui (mpz_ptr r, mpz_srcptr u, unsigned long v)
34 #if BITS_PER_ULONG > GMP_NUMB_BITS /* avoid warnings about shift amount */
39 vlimbs[0] = v & GMP_NUMB_MASK;
40 vlimbs[1] = v >> GMP_NUMB_BITS;
48 /* result zero if either operand zero */
50 if (usize == 0 || v == 0)
57 MPZ_REALLOC (r, usize+1);
60 g = (unsigned long) mpn_gcd_1 (up, usize, (mp_limb_t) v);
64 c = mpn_mul_1 (rp, up, usize, (mp_limb_t) v);