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Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/get_f.c')
-rw-r--r--Build/source/libs/mpfr/mpfr-src/src/get_f.c151
1 files changed, 0 insertions, 151 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/get_f.c b/Build/source/libs/mpfr/mpfr-src/src/get_f.c
deleted file mode 100644
index afe4e5c8b1e..00000000000
--- a/Build/source/libs/mpfr/mpfr-src/src/get_f.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/* mpfr_get_f -- convert a MPFR number to a GNU MPF number
-
-Copyright 2005-2020 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_MPF_INTERNALS
-#include "mpfr-impl.h"
-
-#ifndef MPFR_USE_MINI_GMP
-/* Since MPFR-3.0, return the usual inexact value.
- The erange flag is set if an error occurred in the conversion
- (y is NaN, +Inf, or -Inf that have no equivalent in mpf)
-*/
-int
-mpfr_get_f (mpf_ptr x, mpfr_srcptr y, mpfr_rnd_t rnd_mode)
-{
- int inex;
- mp_size_t sx, sy;
- mpfr_prec_t precx, precy;
- mp_limb_t *xp;
- int sh;
-
- if (MPFR_UNLIKELY(MPFR_IS_SINGULAR(y)))
- {
- if (MPFR_IS_ZERO(y))
- {
- mpf_set_ui (x, 0);
- return 0;
- }
- else if (MPFR_IS_NAN (y))
- {
- MPFR_SET_ERANGEFLAG ();
- return 0;
- }
- else /* y is plus infinity (resp. minus infinity), set x to the maximum
- value (resp. the minimum value) in precision PREC(x) */
- {
- int i;
- mp_limb_t *xp;
-
- MPFR_SET_ERANGEFLAG ();
-
- /* To this day, [mp_exp_t] and mp_size_t are #defined as the same
- type */
- EXP (x) = MP_SIZE_T_MAX;
-
- sx = PREC (x);
- SIZ (x) = sx;
- xp = PTR (x);
- for (i = 0; i < sx; i++)
- xp[i] = MPFR_LIMB_MAX;
-
- if (MPFR_IS_POS (y))
- return -1;
- else
- {
- mpf_neg (x, x);
- return +1;
- }
- }
- }
-
- sx = PREC(x); /* number of limbs of the mantissa of x */
-
- precy = MPFR_PREC(y);
- precx = (mpfr_prec_t) sx * GMP_NUMB_BITS;
- sy = MPFR_LIMB_SIZE (y);
-
- xp = PTR (x);
-
- /* since mpf numbers are represented in base 2^GMP_NUMB_BITS,
- we loose -EXP(y) % GMP_NUMB_BITS bits in the most significant limb */
- sh = MPFR_GET_EXP(y) % GMP_NUMB_BITS;
- sh = sh <= 0 ? - sh : GMP_NUMB_BITS - sh;
- MPFR_ASSERTD (sh >= 0);
- if (precy + sh <= precx) /* we can copy directly */
- {
- mp_size_t ds;
-
- MPFR_ASSERTN (sx >= sy);
- ds = sx - sy;
-
- if (sh != 0)
- {
- mp_limb_t out;
- out = mpn_rshift (xp + ds, MPFR_MANT(y), sy, sh);
- MPFR_ASSERTN (ds > 0 || out == 0);
- if (ds > 0)
- xp[--ds] = out;
- }
- else
- MPN_COPY (xp + ds, MPFR_MANT (y), sy);
- if (ds > 0)
- MPN_ZERO (xp, ds);
- EXP(x) = (MPFR_GET_EXP(y) + sh) / GMP_NUMB_BITS;
- inex = 0;
- }
- else /* we have to round to precx - sh bits */
- {
- mpfr_t z;
- mp_size_t sz;
-
- /* Recall that precx = (mpfr_prec_t) sx * GMP_NUMB_BITS, thus removing
- sh bits (sh < GMP_NUMB_BITSS) won't reduce the number of limbs. */
- mpfr_init2 (z, precx - sh);
- sz = MPFR_LIMB_SIZE (z);
- MPFR_ASSERTN (sx == sz);
-
- inex = mpfr_set (z, y, rnd_mode);
- /* warning, sh may change due to rounding, but then z is a power of two,
- thus we can safely ignore its last bit which is 0 */
- sh = MPFR_GET_EXP(z) % GMP_NUMB_BITS;
- sh = sh <= 0 ? - sh : GMP_NUMB_BITS - sh;
- MPFR_ASSERTD (sh >= 0);
- if (sh != 0)
- {
- mp_limb_t out;
- out = mpn_rshift (xp, MPFR_MANT(z), sz, sh);
- /* If sh hasn't changed, it is the number of the non-significant
- bits in the lowest limb of z. Therefore out == 0. */
- MPFR_ASSERTD (out == 0); (void) out; /* avoid a warning */
- }
- else
- MPN_COPY (xp, MPFR_MANT(z), sz);
- EXP(x) = (MPFR_GET_EXP(z) + sh) / GMP_NUMB_BITS;
- mpfr_clear (z);
- }
-
- /* set size and sign */
- SIZ(x) = (MPFR_FROM_SIGN_TO_INT(MPFR_SIGN(y)) < 0) ? -sx : sx;
-
- return inex;
-}
-#endif