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authorDenis Bitouzé <dbitouze@wanadoo.fr>2021-02-25 18:23:07 +0000
committerDenis Bitouzé <dbitouze@wanadoo.fr>2021-02-25 18:23:07 +0000
commitc6101f91d071883b48b1b4b51e5eba0f36d9a78d (patch)
tree1bf7f5a881d7a4f5c5bf59d0b2821943dd822372 /Build/source/libs/mpfr/mpfr-src/src/log2.c
parent07ee7222e389b0777456b427a55c22d0e6ffd267 (diff)
French translation for tlmgr updated
git-svn-id: svn://tug.org/texlive/trunk@57912 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/log2.c')
-rw-r--r--Build/source/libs/mpfr/mpfr-src/src/log2.c142
1 files changed, 0 insertions, 142 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/log2.c b/Build/source/libs/mpfr/mpfr-src/src/log2.c
deleted file mode 100644
index 41cd33c7ee1..00000000000
--- a/Build/source/libs/mpfr/mpfr-src/src/log2.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* mpfr_log2 -- log base 2
-
-Copyright 2001-2020 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. */
-
-#define MPFR_NEED_LONGLONG_H
-#include "mpfr-impl.h"
-
- /* The computation of r=log2(a)
- r=log2(a)=log(a)/log(2) */
-
-int
-mpfr_log2 (mpfr_ptr r, mpfr_srcptr a, mpfr_rnd_t rnd_mode)
-{
- int inexact;
- MPFR_SAVE_EXPO_DECL (expo);
-
- MPFR_LOG_FUNC
- (("a[%Pu]=%.*Rg rnd=%d", mpfr_get_prec (a), mpfr_log_prec, a, rnd_mode),
- ("r[%Pu]=%.*Rg inexact=%d", mpfr_get_prec (r), mpfr_log_prec, r,
- inexact));
-
- if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (a)))
- {
- /* If a is NaN, the result is NaN */
- if (MPFR_IS_NAN (a))
- {
- MPFR_SET_NAN (r);
- MPFR_RET_NAN;
- }
- /* check for infinity before zero */
- else if (MPFR_IS_INF (a))
- {
- if (MPFR_IS_NEG (a))
- /* log(-Inf) = NaN */
- {
- MPFR_SET_NAN (r);
- MPFR_RET_NAN;
- }
- else /* log(+Inf) = +Inf */
- {
- MPFR_SET_INF (r);
- MPFR_SET_POS (r);
- MPFR_RET (0);
- }
- }
- else /* a is zero */
- {
- MPFR_ASSERTD (MPFR_IS_ZERO (a));
- MPFR_SET_INF (r);
- MPFR_SET_NEG (r);
- MPFR_SET_DIVBY0 ();
- MPFR_RET (0); /* log2(0) is an exact -infinity */
- }
- }
-
- /* If a is negative, the result is NaN */
- if (MPFR_UNLIKELY (MPFR_IS_NEG (a)))
- {
- MPFR_SET_NAN (r);
- MPFR_RET_NAN;
- }
-
- /* If a is 1, the result is 0 */
- if (MPFR_UNLIKELY (mpfr_cmp_ui (a, 1) == 0))
- {
- MPFR_SET_ZERO (r);
- MPFR_SET_POS (r);
- MPFR_RET (0); /* only "normal" case where the result is exact */
- }
-
- /* If a is 2^N, log2(a) is exact*/
- if (MPFR_UNLIKELY (mpfr_cmp_ui_2exp (a, 1, MPFR_GET_EXP (a) - 1) == 0))
- return mpfr_set_si(r, MPFR_GET_EXP (a) - 1, rnd_mode);
-
- MPFR_SAVE_EXPO_MARK (expo);
-
- /* General case */
- {
- /* Declaration of the intermediary variable */
- mpfr_t t, tt;
- /* Declaration of the size variable */
- mpfr_prec_t Ny = MPFR_PREC(r); /* target precision */
- mpfr_prec_t Nt; /* working precision */
- mpfr_exp_t err; /* error */
- MPFR_ZIV_DECL (loop);
-
- /* compute the precision of intermediary variable */
- /* the optimal number of bits : see algorithms.tex */
- Nt = Ny + 3 + MPFR_INT_CEIL_LOG2 (Ny);
-
- /* initialize of intermediary variable */
- mpfr_init2 (t, Nt);
- mpfr_init2 (tt, Nt);
-
- /* First computation of log2 */
- MPFR_ZIV_INIT (loop, Nt);
- for (;;)
- {
- /* compute log2 */
- mpfr_const_log2(t,MPFR_RNDD); /* log(2) */
- mpfr_log(tt,a,MPFR_RNDN); /* log(a) */
- mpfr_div(t,tt,t,MPFR_RNDN); /* log(a)/log(2) */
-
- /* estimation of the error */
- err = Nt-3;
- if (MPFR_LIKELY (MPFR_CAN_ROUND (t, err, Ny, rnd_mode)))
- break;
-
- /* actualization of the precision */
- MPFR_ZIV_NEXT (loop, Nt);
- mpfr_set_prec (t, Nt);
- mpfr_set_prec (tt, Nt);
- }
- MPFR_ZIV_FREE (loop);
-
- inexact = mpfr_set (r, t, rnd_mode);
-
- mpfr_clear (t);
- mpfr_clear (tt);
- }
-
- MPFR_SAVE_EXPO_FREE (expo);
- return mpfr_check_range (r, inexact, rnd_mode);
-}