1 /* mpz_mul_ui(product, multiplier, small_multiplicand) -- Set
2 PRODUCT to MULTIPLICATOR times SMALL_MULTIPLICAND.
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. */
28 mpz_mul_ui (MP_INT *prod, const MP_INT *mult,
29 unsigned long int small_mult)
31 mpz_mul_ui (prod, mult, small_mult)
34 unsigned long int small_mult;
37 mp_size mult_size = mult->size;
38 mp_size sign_product = mult_size;
45 mult_size = ABS (mult_size);
47 if (mult_size == 0 || small_mult == 0)
53 prod_size = mult_size + 1;
54 if (prod->alloc < prod_size)
55 _mpz_realloc (prod, prod_size);
61 for (i = 0; i < mult_size; i++)
64 umul_ppmm (p1, p0, small_mult, mult_ptr[i]);
70 prod_size = mult_size;
73 prod_ptr[mult_size] = cy;
77 prod->size = sign_product > 0 ? prod_size : -prod_size;