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 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