1/* mpfr_add_d -- add a multiple precision floating-point number 2 to a machine double precision float 3 4Copyright 2007-2023 Free Software Foundation, Inc. 5Contributed by the AriC and Caramba projects, INRIA. 6 7This file is part of the GNU MPFR Library. 8 9The GNU MPFR Library is free software; you can redistribute it and/or modify 10it under the terms of the GNU Lesser General Public License as published by 11the Free Software Foundation; either version 3 of the License, or (at your 12option) any later version. 13 14The GNU MPFR Library is distributed in the hope that it will be useful, but 15WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17License for more details. 18 19You should have received a copy of the GNU Lesser General Public License 20along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 21https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 2251 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ 23 24#include "mpfr-impl.h" 25 26int 27mpfr_add_d (mpfr_ptr a, mpfr_srcptr b, double c, mpfr_rnd_t rnd_mode) 28{ 29 int inexact; 30 mpfr_t d; 31 mp_limb_t tmp_man[MPFR_LIMBS_PER_DOUBLE]; 32 MPFR_SAVE_EXPO_DECL (expo); 33 34 MPFR_LOG_FUNC 35 (("b[%Pu]=%.*Rg c=%.20g rnd=%d", 36 mpfr_get_prec(b), mpfr_log_prec, b, c, rnd_mode), 37 ("a[%Pu]=%.*Rg inexact=%d", 38 mpfr_get_prec (a), mpfr_log_prec, a, inexact)); 39 40 MPFR_SAVE_EXPO_MARK (expo); 41 42 MPFR_TMP_INIT1(tmp_man, d, IEEE_DBL_MANT_DIG); 43 inexact = mpfr_set_d (d, c, rnd_mode); 44 MPFR_ASSERTD (inexact == 0); 45 46 MPFR_CLEAR_FLAGS (); 47 inexact = mpfr_add (a, b, d, rnd_mode); 48 MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags); 49 50 MPFR_SAVE_EXPO_FREE (expo); 51 return mpfr_check_range (a, inexact, rnd_mode); 52} 53