Files
RedBear-OS/recipes/libs/libmpfr/source/src/pow_uj.c
T
vasilito ff4ff35918 feat: track all source trees in git — full fork offline-first model
Red Bear OS is a full fork. All sources must be available from git clone
with zero network access. Removed gitignore rules that excluded fetched
source trees under recipes/*/source/, local/recipes/kde/*/source/,
local/recipes/qt/*/source/, and vendor source trees.

Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded.

127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt
frameworks, mesa, wayland, DRM drivers, and every other recipe source.
2026-05-14 10:55:53 +01:00

62 lines
1.9 KiB
C

/* mpfr_pow_uj -- compute the power of a floating-point by a uintmax_t
Copyright 2021-2025 Free Software Foundation, Inc.
Contributed by the Pascaline 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/>. */
#define MPFR_NEED_LONGLONG_H
#define MPFR_NEED_INTMAX_H
#include "mpfr-impl.h"
#ifdef _MPFR_H_HAVE_INTMAX_T
#define POW_U mpfr_pow_uj
#define MPZ_SET_U mpfr_mpz_set_uj
#define UTYPE uintmax_t
#define FSPEC "j"
#define ULONG_BITS (sizeof (unsigned long) * CHAR_BIT)
/* z <- n, assuming uintmax_t is at most twice as wide as unsigned long
and assume no padding bits.
FIXME: code should be shared with mpfr_set_uj_2exp to avoid such
limitations (and this could be more efficient).
*/
static void
mpfr_mpz_set_uj (mpz_t z, uintmax_t n)
{
if ((unsigned long) n == n)
mpz_set_ui (z, n);
else
{
uintmax_t h = (n >> (ULONG_BITS - 1)) >> 1;
/* equivalent to n >> ULONG_BITS, as a workaround to GCC bug 4210
"should not warn in dead code". */
MPFR_ASSERTN ((unsigned long) h == h);
mpz_set_ui (z, (unsigned long) h);
mpz_mul_2exp (z, z, ULONG_BITS);
mpz_add_ui (z, z, (unsigned long) n);
}
}
#include "pow_ui.c"
#endif