diff options
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/isinteger.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/isinteger.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/isinteger.c b/Build/source/libs/mpfr/mpfr-src/src/isinteger.c deleted file mode 100644 index 770cdf77441..00000000000 --- a/Build/source/libs/mpfr/mpfr-src/src/isinteger.c +++ /dev/null @@ -1,59 +0,0 @@ -/* mpfr_integer_p -- test if a mpfr variable is integer. - -Copyright 2001-2004, 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_integer_p (mpfr_srcptr x) -{ - mpfr_exp_t expo; - mpfr_prec_t prec; - mp_size_t xn; - mp_limb_t *xp; - - if (MPFR_UNLIKELY( MPFR_IS_SINGULAR(x))) - return (MPFR_IS_ZERO(x)); - - expo = MPFR_GET_EXP (x); - if (expo <= 0) - return 0; - - prec = MPFR_PREC(x); - if ((mpfr_uexp_t) expo >= (mpfr_uexp_t) prec) - return 1; - - /* 0 < expo < prec */ - - xn = (mp_size_t) ((prec - 1) / GMP_NUMB_BITS); /* index of last limb */ - xn -= (mp_size_t) (expo / GMP_NUMB_BITS); - /* now the index of the last limb containing bits of the fractional part */ - - xp = MPFR_MANT(x); - MPFR_ASSERTN(xn >= 0); - if (MPFR_LIMB_LSHIFT(xp[xn], expo % GMP_NUMB_BITS) != 0) - return 0; - while (--xn >= 0) - if (xp[xn] != 0) - return 0; - return 1; -} |