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Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/sinh.c')
-rw-r--r--Build/source/libs/mpfr/mpfr-src/src/sinh.c184
1 files changed, 0 insertions, 184 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/sinh.c b/Build/source/libs/mpfr/mpfr-src/src/sinh.c
deleted file mode 100644
index 83c8d9bf320..00000000000
--- a/Build/source/libs/mpfr/mpfr-src/src/sinh.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/* mpfr_sinh -- hyperbolic sine
-
-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 sinh is done by
- sinh(x) = 1/2 [e^(x)-e^(-x)] */
-
-int
-mpfr_sinh (mpfr_ptr y, mpfr_srcptr xt, mpfr_rnd_t rnd_mode)
-{
- mpfr_t x;
- int inexact;
-
- MPFR_LOG_FUNC
- (("x[%Pu]=%.*Rg rnd=%d", mpfr_get_prec (xt), mpfr_log_prec, xt, rnd_mode),
- ("y[%Pu]=%.*Rg inexact=%d",
- mpfr_get_prec (y), mpfr_log_prec, y, inexact));
-
- if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (xt)))
- {
- if (MPFR_IS_NAN (xt))
- {
- MPFR_SET_NAN (y);
- MPFR_RET_NAN;
- }
- else if (MPFR_IS_INF (xt))
- {
- MPFR_SET_INF (y);
- MPFR_SET_SAME_SIGN (y, xt);
- MPFR_RET (0);
- }
- else /* xt is zero */
- {
- MPFR_ASSERTD (MPFR_IS_ZERO (xt));
- MPFR_SET_ZERO (y); /* sinh(0) = 0 */
- MPFR_SET_SAME_SIGN (y, xt);
- MPFR_RET (0);
- }
- }
-
- /* sinh(x) = x + x^3/6 + ... so the error is < 2^(3*EXP(x)-2) */
- MPFR_FAST_COMPUTE_IF_SMALL_INPUT (y, xt, -2 * MPFR_GET_EXP(xt), 2, 1,
- rnd_mode, {});
-
- MPFR_TMP_INIT_ABS (x, xt);
-
- {
- mpfr_t t, ti;
- mpfr_exp_t d;
- mpfr_prec_t Nt; /* Precision of the intermediary variable */
- long int err; /* Precision of error */
- MPFR_ZIV_DECL (loop);
- MPFR_SAVE_EXPO_DECL (expo);
- MPFR_GROUP_DECL (group);
-
- MPFR_SAVE_EXPO_MARK (expo);
-
- /* compute the precision of intermediary variable */
- Nt = MAX (MPFR_PREC (x), MPFR_PREC (y));
- /* the optimal number of bits : see algorithms.ps */
- Nt = Nt + MPFR_INT_CEIL_LOG2 (Nt) + 4;
- /* If x is near 0, exp(x) - 1/exp(x) = 2*x+x^3/3+O(x^5) */
- if (MPFR_GET_EXP (x) < 0)
- Nt -= 2*MPFR_GET_EXP (x);
-
- /* initialize of intermediary variables */
- MPFR_GROUP_INIT_2 (group, Nt, t, ti);
-
- /* First computation of sinh */
- MPFR_ZIV_INIT (loop, Nt);
- for (;;)
- {
- MPFR_BLOCK_DECL (flags);
-
- /* compute sinh */
- MPFR_BLOCK (flags, mpfr_exp (t, x, MPFR_RNDD));
- if (MPFR_OVERFLOW (flags))
- /* exp(x) does overflow */
- {
- /* sinh(x) = 2 * sinh(x/2) * cosh(x/2) */
- mpfr_div_2ui (ti, x, 1, MPFR_RNDD); /* exact */
-
- /* t <- cosh(x/2): error(t) <= 1 ulp(t) */
- MPFR_BLOCK (flags, mpfr_cosh (t, ti, MPFR_RNDD));
- if (MPFR_OVERFLOW (flags))
- /* when x>1 we have |sinh(x)| >= cosh(x/2), so sinh(x)
- overflows too */
- {
- inexact = mpfr_overflow (y, rnd_mode, MPFR_SIGN (xt));
- MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, MPFR_FLAGS_OVERFLOW);
- break;
- }
-
- /* ti <- sinh(x/2): , error(ti) <= 1 ulp(ti)
- cannot overflow because 0 < sinh(x) < cosh(x) when x > 0 */
- mpfr_sinh (ti, ti, MPFR_RNDD);
-
- /* multiplication below, error(t) <= 5 ulp(t) */
- MPFR_BLOCK (flags, mpfr_mul (t, t, ti, MPFR_RNDD));
- if (MPFR_OVERFLOW (flags))
- {
- inexact = mpfr_overflow (y, rnd_mode, MPFR_SIGN (xt));
- MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, MPFR_FLAGS_OVERFLOW);
- break;
- }
-
- /* doubling below, exact */
- MPFR_BLOCK (flags, mpfr_mul_2ui (t, t, 1, MPFR_RNDN));
- if (MPFR_OVERFLOW (flags))
- {
- inexact = mpfr_overflow (y, rnd_mode, MPFR_SIGN (xt));
- MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, MPFR_FLAGS_OVERFLOW);
- break;
- }
-
- /* we have lost at most 3 bits of precision */
- err = Nt - 3;
- if (MPFR_LIKELY (MPFR_CAN_ROUND (t, err, MPFR_PREC (y),
- rnd_mode)))
- {
- inexact = mpfr_set4 (y, t, rnd_mode, MPFR_SIGN (xt));
- break;
- }
- err = Nt; /* double the precision */
- }
- else
- {
- d = MPFR_GET_EXP (t);
- mpfr_ui_div (ti, 1, t, MPFR_RNDU); /* 1/exp(x) */
- mpfr_sub (t, t, ti, MPFR_RNDN); /* exp(x) - 1/exp(x) */
- mpfr_div_2ui (t, t, 1, MPFR_RNDN); /* 1/2(exp(x) - 1/exp(x)) */
-
- /* it may be that t is zero (in fact, it can only occur when te=1,
- and thus ti=1 too) */
- if (MPFR_IS_ZERO (t))
- err = Nt; /* double the precision */
- else
- {
- /* calculation of the error */
- d = d - MPFR_GET_EXP (t) + 2;
- /* error estimate: err = Nt-(__gmpfr_ceil_log2(1+pow(2,d)));*/
- err = Nt - (MAX (d, 0) + 1);
- if (MPFR_LIKELY (MPFR_CAN_ROUND (t, err, MPFR_PREC (y),
- rnd_mode)))
- {
- inexact = mpfr_set4 (y, t, rnd_mode, MPFR_SIGN (xt));
- break;
- }
- }
- }
-
- /* actualization of the precision */
- Nt += err;
- MPFR_ZIV_NEXT (loop, Nt);
- MPFR_GROUP_REPREC_2 (group, Nt, t, ti);
- }
- MPFR_ZIV_FREE (loop);
- MPFR_GROUP_CLEAR (group);
- MPFR_SAVE_EXPO_FREE (expo);
- }
-
- return mpfr_check_range (y, inexact, rnd_mode);
-}