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authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/libs/mpfr/mpfr-src/src/add_d.c
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (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.c52
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);
+}