diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-02-22 06:02:38 +0000 |
---|---|---|
committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-02-22 06:02:38 +0000 |
commit | b2ef5d127f546fa32f303b1dedfc4a6390ad677e (patch) | |
tree | 17cd90adb54888579df0e08223bf4909332380c2 /Build/source/libs/mpfr/mpfr-src/src/add_d.c | |
parent | 05d739843a7c50294efbda2abf2ab4ea3fc146b1 (diff) |
libs/mpfr: New convention
git-svn-id: svn://tug.org/texlive/trunk@39814 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..ee55aed2499 --- /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 2007-2015 Free Software Foundation, Inc. +Contributed by the AriC and Caramel 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 +http://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; + 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_init2 (d, IEEE_DBL_MANT_DIG); + inexact = mpfr_set_d (d, c, rnd_mode); + MPFR_ASSERTN (inexact == 0); + + mpfr_clear_flags (); + inexact = mpfr_add (a, b, d, rnd_mode); + MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags); + + mpfr_clear (d); + MPFR_SAVE_EXPO_FREE (expo); + return mpfr_check_range (a, inexact, rnd_mode); +} |