diff options
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/ui_div.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/ui_div.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/ui_div.c b/Build/source/libs/mpfr/mpfr-src/src/ui_div.c deleted file mode 100644 index 03629555e19..00000000000 --- a/Build/source/libs/mpfr/mpfr-src/src/ui_div.c +++ /dev/null @@ -1,111 +0,0 @@ -/* mpfr_ui_div -- divide a machine integer by a floating-point number - -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_div (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)); - - if (MPFR_UNLIKELY(MPFR_IS_SINGULAR(x))) - { - if (MPFR_IS_NAN(x)) - { - MPFR_SET_NAN(y); - MPFR_RET_NAN; - } - else if (MPFR_IS_INF(x)) /* u/Inf = 0 */ - { - MPFR_SET_ZERO(y); - MPFR_SET_SAME_SIGN(y,x); - MPFR_RET(0); - } - else /* u / 0 */ - { - MPFR_ASSERTD(MPFR_IS_ZERO(x)); - if (u) - { - /* u > 0, so y = sign(x) * Inf */ - MPFR_SET_SAME_SIGN(y, x); - MPFR_SET_INF(y); - MPFR_SET_DIVBY0 (); - MPFR_RET(0); - } - else - { - /* 0 / 0 */ - MPFR_SET_NAN(y); - MPFR_RET_NAN; - } - } - } - else if (MPFR_LIKELY(u != 0)) - { - int inex; - MPFR_SAVE_EXPO_DECL (expo); - - /* Optimization note: Exponent save/restore operations may be - removed if mpfr_div 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); - MPFR_ASSERTN(u == (mp_limb_t) u); - 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_div (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_div (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); - } - else /* u = 0, and x != 0 */ - { - MPFR_SET_ZERO(y); /* if u=0, then set y to 0 */ - MPFR_SET_SAME_SIGN(y, x); /* u considered as +0: sign(+0/x) = sign(x) */ - MPFR_RET(0); - } -} |