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author | Karl Berry <karl@freefriends.org> | 2021-02-25 19:22:25 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2021-02-25 19:22:25 +0000 |
commit | ad547a6b5986815fda458221149728d9d9ab1d87 (patch) | |
tree | 16296910eb3eca724371474ea9aea3994dc69614 /Build/source/libs/mpfr/mpfr-src/src/add_d.c | |
parent | 947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff) |
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/add_d.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/add_d.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/add_d.c b/Build/source/libs/mpfr/mpfr-src/src/add_d.c new file mode 100644 index 00000000000..a934bfbddcc --- /dev/null +++ b/Build/source/libs/mpfr/mpfr-src/src/add_d.c @@ -0,0 +1,52 @@ +/* mpfr_add_d -- add a multiple precision floating-point number + to a machine double precision float + +Copyright 2007-2020 Free Software Foundation, Inc. +Contributed by the AriC and Caramba projects, INRIA. + +This file is part of the GNU MPFR Library. + +The GNU MPFR Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 3 of the License, or (at your +option) any later version. + +The GNU MPFR Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see +https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., +51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include "mpfr-impl.h" + +int +mpfr_add_d (mpfr_ptr a, mpfr_srcptr b, double c, mpfr_rnd_t rnd_mode) +{ + int inexact; + mpfr_t d; + mp_limb_t tmp_man[MPFR_LIMBS_PER_DOUBLE]; + MPFR_SAVE_EXPO_DECL (expo); + + MPFR_LOG_FUNC + (("b[%Pu]=%.*Rg c=%.20g rnd=%d", + mpfr_get_prec(b), mpfr_log_prec, b, c, rnd_mode), + ("a[%Pu]=%.*Rg inexact=%d", + mpfr_get_prec (a), mpfr_log_prec, a, inexact)); + + MPFR_SAVE_EXPO_MARK (expo); + + MPFR_TMP_INIT1(tmp_man, d, IEEE_DBL_MANT_DIG); + inexact = mpfr_set_d (d, c, rnd_mode); + MPFR_ASSERTD (inexact == 0); + + MPFR_CLEAR_FLAGS (); + inexact = mpfr_add (a, b, d, rnd_mode); + MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags); + + MPFR_SAVE_EXPO_FREE (expo); + return mpfr_check_range (a, inexact, rnd_mode); +} |