diff options
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/get_z.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/get_z.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/get_z.c b/Build/source/libs/mpfr/mpfr-src/src/get_z.c deleted file mode 100644 index ce55183f0d2..00000000000 --- a/Build/source/libs/mpfr/mpfr-src/src/get_z.c +++ /dev/null @@ -1,71 +0,0 @@ -/* mpfr_get_z -- get a multiple-precision integer from - a floating-point number - -Copyright 2004, 2006-2020 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_get_z (mpz_ptr z, mpfr_srcptr f, mpfr_rnd_t rnd) -{ - int inex; - mpfr_t r; - mpfr_exp_t exp; - MPFR_SAVE_EXPO_DECL (expo); - - if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (f))) - { - if (MPFR_UNLIKELY (MPFR_NOTZERO (f))) - MPFR_SET_ERANGEFLAG (); - mpz_set_ui (z, 0); - /* The ternary value is 0 even for infinity. Giving the rounding - direction in this case would not make much sense anyway, and - the direction would not necessarily match rnd. */ - return 0; - } - - MPFR_SAVE_EXPO_MARK (expo); - - exp = MPFR_GET_EXP (f); - /* if exp <= 0, then |f|<1, thus |o(f)|<=1 */ - MPFR_ASSERTN (exp < 0 || exp <= MPFR_PREC_MAX); - mpfr_init2 (r, (exp < (mpfr_exp_t) MPFR_PREC_MIN ? - MPFR_PREC_MIN : (mpfr_prec_t) exp)); - inex = mpfr_rint (r, f, rnd); - MPFR_ASSERTN (inex != 1 && inex != -1); /* integral part of f is - representable in r */ - MPFR_ASSERTN (MPFR_IS_FP (r)); - - /* The flags from mpfr_rint are the wanted ones. In particular, - it sets the inexact flag when necessary. */ - MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags); - - exp = mpfr_get_z_2exp (z, r); - if (exp >= 0) - mpz_mul_2exp (z, z, exp); - else - mpz_fdiv_q_2exp (z, z, -exp); - mpfr_clear (r); - - MPFR_SAVE_EXPO_FREE (expo); - - return inex; -} |