diff options
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/ui_sub.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/ui_sub.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/ui_sub.c b/Build/source/libs/mpfr/mpfr-src/src/ui_sub.c deleted file mode 100644 index c0b8fadb664..00000000000 --- a/Build/source/libs/mpfr/mpfr-src/src/ui_sub.c +++ /dev/null @@ -1,96 +0,0 @@ -/* mpfr_ui_sub -- subtract a floating-point number from an integer - -Copyright 2000-2020 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" - -int -mpfr_ui_sub (mpfr_ptr y, unsigned long int u, mpfr_srcptr x, mpfr_rnd_t rnd_mode) -{ - MPFR_LOG_FUNC - (("u=%lu x[%Pu]=%.*Rg rnd=%d", - u, mpfr_get_prec(x), mpfr_log_prec, x, rnd_mode), - ("y[%Pu]=%.*Rg", mpfr_get_prec(y), mpfr_log_prec, y)); - - /* (unsigned long) 0 is assumed to be a real 0 (unsigned) */ - if (MPFR_UNLIKELY (u == 0)) - return mpfr_neg (y, x, rnd_mode); - - if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (x))) - { - if (MPFR_IS_NAN (x)) - { - MPFR_SET_NAN (y); - MPFR_RET_NAN; - } - if (MPFR_IS_INF (x)) - { - /* u - Inf = -Inf and u - -Inf = +Inf */ - MPFR_SET_INF (y); - MPFR_SET_OPPOSITE_SIGN (y, x); - MPFR_RET (0); /* +/-infinity is exact */ - } - MPFR_ASSERTD (MPFR_IS_ZERO (x) && u != 0); - /* Note: the fact that u != 0 is important due to signed zeros. */ - /* u - 0 = u */ - return mpfr_set_ui (y, u, rnd_mode); - } - - /* Main code */ - { - int inex; - MPFR_SAVE_EXPO_DECL (expo); - - /* Optimization note: Exponent save/restore operations may be - removed if mpfr_sub works even when uu is out-of-range. */ - MPFR_SAVE_EXPO_MARK (expo); - -#ifdef MPFR_LONG_WITHIN_LIMB - { - mpfr_t uu; - mp_limb_t up[1]; - int cnt; - - MPFR_TMP_INIT1 (up, uu, GMP_NUMB_BITS); - /* So, u fits in a mp_limb_t, which justifies the casts below. */ - MPFR_ASSERTD (u != 0); - count_leading_zeros (cnt, (mp_limb_t) u); - up[0] = (mp_limb_t) u << cnt; - MPFR_SET_EXP (uu, GMP_NUMB_BITS - cnt); - inex = mpfr_sub (y, uu, x, rnd_mode); - } -#else - { - mpfr_t uu; - - mpfr_init2 (uu, sizeof (unsigned long) * CHAR_BIT); - mpfr_set_ui (uu, u, MPFR_RNDZ); - inex = mpfr_sub (y, uu, x, rnd_mode); - mpfr_clear (uu); - } -#endif - - MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags); - MPFR_SAVE_EXPO_FREE (expo); - return mpfr_check_range (y, inex, rnd_mode); - } -} |