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-rw-r--r--Build/source/libs/mpfr/mpfr-src/src/get_d.c182
1 files changed, 0 insertions, 182 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/get_d.c b/Build/source/libs/mpfr/mpfr-src/src/get_d.c
deleted file mode 100644
index 8721c023543..00000000000
--- a/Build/source/libs/mpfr/mpfr-src/src/get_d.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* mpfr_get_d, mpfr_get_d_2exp -- convert a multiple precision floating-point
- number to a machine double precision float
-
-Copyright 1999-2020 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 <float.h>
-
-#define MPFR_NEED_LONGLONG_H
-#include "mpfr-impl.h"
-
-#include "ieee_floats.h"
-
-/* Assumes IEEE-754 double precision; otherwise, only an approximated
- result will be returned, without any guaranty (and special cases
- such as NaN must be avoided if not supported). */
-
-double
-mpfr_get_d (mpfr_srcptr src, mpfr_rnd_t rnd_mode)
-{
- double d;
- int negative;
- mpfr_exp_t e;
-
- if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (src)))
- {
- if (MPFR_IS_NAN (src))
- return MPFR_DBL_NAN;
-
- negative = MPFR_IS_NEG (src);
-
- if (MPFR_IS_INF (src))
- return negative ? MPFR_DBL_INFM : MPFR_DBL_INFP;
-
- MPFR_ASSERTD (MPFR_IS_ZERO(src));
- return negative ? DBL_NEG_ZERO : 0.0;
- }
-
- e = MPFR_GET_EXP (src);
- negative = MPFR_IS_NEG (src);
-
- if (MPFR_UNLIKELY(rnd_mode == MPFR_RNDA))
- rnd_mode = negative ? MPFR_RNDD : MPFR_RNDU;
-
- /* the smallest normalized number is 2^(-1022)=0.1e-1021, and the smallest
- subnormal is 2^(-1074)=0.1e-1073 */
- if (MPFR_UNLIKELY (e < -1073))
- {
- /* Note: Avoid using a constant expression DBL_MIN * DBL_EPSILON
- as this gives 0 instead of the correct result with gcc on some
- Alpha machines. */
- d = negative ?
- (rnd_mode == MPFR_RNDD ||
- (rnd_mode == MPFR_RNDN && mpfr_cmp_si_2exp(src, -1, -1075) < 0)
- ? -DBL_MIN : DBL_NEG_ZERO) :
- (rnd_mode == MPFR_RNDU ||
- (rnd_mode == MPFR_RNDN && mpfr_cmp_si_2exp(src, 1, -1075) > 0)
- ? DBL_MIN : 0.0);
- if (d != 0.0) /* we multiply DBL_MIN = 2^(-1022) by DBL_EPSILON = 2^(-52)
- to get +-2^(-1074) */
- d *= DBL_EPSILON;
- }
- /* the largest normalized number is 2^1024*(1-2^(-53))=0.111...111e1024 */
- else if (MPFR_UNLIKELY (e > 1024))
- {
- d = negative ?
- (rnd_mode == MPFR_RNDZ || rnd_mode == MPFR_RNDU ?
- -DBL_MAX : MPFR_DBL_INFM) :
- (rnd_mode == MPFR_RNDZ || rnd_mode == MPFR_RNDD ?
- DBL_MAX : MPFR_DBL_INFP);
- }
- else
- {
- int nbits;
- mp_limb_t tp[ MPFR_LIMBS_PER_DOUBLE ];
- int carry;
-
- nbits = IEEE_DBL_MANT_DIG; /* 53 */
- if (MPFR_UNLIKELY (e < -1021))
- /*In the subnormal case, compute the exact number of significant bits*/
- {
- nbits += 1021 + e;
- MPFR_ASSERTD (1 <= nbits && nbits < IEEE_DBL_MANT_DIG);
- }
- carry = mpfr_round_raw_4 (tp, MPFR_MANT(src), MPFR_PREC(src), negative,
- nbits, rnd_mode);
- if (MPFR_UNLIKELY(carry))
- d = 1.0;
- else
- {
-#if MPFR_LIMBS_PER_DOUBLE == 1
- d = (double) tp[0] / MP_BASE_AS_DOUBLE;
-#else
- mp_size_t np, i;
- MPFR_ASSERTD (nbits <= IEEE_DBL_MANT_DIG);
- np = MPFR_PREC2LIMBS (nbits);
- MPFR_ASSERTD ( np <= MPFR_LIMBS_PER_DOUBLE );
- /* The following computations are exact thanks to the previous
- mpfr_round_raw. */
- d = (double) tp[0] / MP_BASE_AS_DOUBLE;
- for (i = 1 ; i < np ; i++)
- d = (d + tp[i]) / MP_BASE_AS_DOUBLE;
- /* d is the mantissa (between 1/2 and 1) of the argument rounded
- to 53 bits */
-#endif
- }
- d = mpfr_scale2 (d, e);
- if (negative)
- d = -d;
- }
-
- return d;
-}
-
-#undef mpfr_get_d1
-double
-mpfr_get_d1 (mpfr_srcptr src)
-{
- return mpfr_get_d (src, __gmpfr_default_rounding_mode);
-}
-
-double
-mpfr_get_d_2exp (long *expptr, mpfr_srcptr src, mpfr_rnd_t rnd_mode)
-{
- double ret;
- mpfr_exp_t exp;
- mpfr_t tmp;
-
- if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (src)))
- {
- int negative;
- *expptr = 0;
- if (MPFR_IS_NAN (src))
- return MPFR_DBL_NAN;
- negative = MPFR_IS_NEG (src);
- if (MPFR_IS_INF (src))
- return negative ? MPFR_DBL_INFM : MPFR_DBL_INFP;
- MPFR_ASSERTD (MPFR_IS_ZERO(src));
- return negative ? DBL_NEG_ZERO : 0.0;
- }
-
- MPFR_ALIAS (tmp, src, MPFR_SIGN (src), 0);
- ret = mpfr_get_d (tmp, rnd_mode);
-
- exp = MPFR_GET_EXP (src);
-
- /* rounding can give 1.0, adjust back to 0.5 <= abs(ret) < 1.0 */
- if (ret == 1.0)
- {
- ret = 0.5;
- exp++;
- }
- else if (ret == -1.0)
- {
- ret = -0.5;
- exp++;
- }
-
- MPFR_ASSERTN ((ret >= 0.5 && ret < 1.0)
- || (ret <= -0.5 && ret > -1.0));
- MPFR_ASSERTN (exp >= LONG_MIN && exp <= LONG_MAX);
-
- *expptr = exp;
- return ret;
-}