1 /* mpc_sum -- Add an array of complex numbers.
2
3 Copyright (C) 2018 INRIA
4
5 This file is part of GNU MPC.
6
7 GNU MPC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU Lesser General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
15 more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with this program. If not, see http://www.gnu.org/licenses/ .
19 */
20
21 #include <stdio.h> /* for MPC_ASSERT */
22 #include "mpc-impl.h"
23
24 int
mpc_sum(mpc_ptr sum,const mpc_ptr * z,unsigned long n,mpc_rnd_t rnd)25 mpc_sum (mpc_ptr sum, const mpc_ptr *z, unsigned long n, mpc_rnd_t rnd)
26 {
27 int inex_re, inex_im;
28 mpfr_ptr *t;
29 unsigned long i;
30
31 t = (mpfr_ptr *) malloc (n * sizeof(mpfr_t));
32 /* warning: when n=0, malloc() might return NULL (e.g., gcc119) */
33 MPC_ASSERT(n == 0 || t != NULL);
34 for (i = 0; i < n; i++)
35 t[i] = mpc_realref (z[i]);
36 inex_re = mpfr_sum (mpc_realref (sum), t, n, MPC_RND_RE (rnd));
37 for (i = 0; i < n; i++)
38 t[i] = mpc_imagref (z[i]);
39 inex_im = mpfr_sum (mpc_imagref (sum), t, n, MPC_RND_IM (rnd));
40 free (t);
41
42 return MPC_INEX(inex_re, inex_im);
43 }
44