diff options
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/powerof2.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/powerof2.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/powerof2.c b/Build/source/libs/mpfr/mpfr-src/src/powerof2.c deleted file mode 100644 index f403671b387..00000000000 --- a/Build/source/libs/mpfr/mpfr-src/src/powerof2.c +++ /dev/null @@ -1,50 +0,0 @@ -/* mpfr_powerof2_raw -- test whether a floating-point number is a power of 2 - -Copyright 2002-2020 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" - -/* This is an internal function and one assumes that x is a non-special - * number (more precisely, only its significand is considered and this - * function can be used even if the exponent field of x has not been - * initialized). It returns 1 (true) if |x| is a power of 2, else 0. - */ - -int -mpfr_powerof2_raw (mpfr_srcptr x) -{ - /* This is an internal function, and we may call it with some - wrong numbers (ie good mantissa but wrong flags or exp) - So we don't want to test if it is a pure FP. - MPFR_ASSERTN(MPFR_IS_PURE_FP(x)); */ - return mpfr_powerof2_raw2 (MPFR_MANT(x), MPFR_LIMB_SIZE(x)); -} - -int -mpfr_powerof2_raw2 (const mp_limb_t *xp, mp_size_t xn) -{ - if (xp[--xn] != MPFR_LIMB_HIGHBIT) - return 0; - while (xn > 0) - if (xp[--xn] != 0) - return 0; - return 1; -} |