Files
RedBear-OS/recipes/libs/libmpfr/source/src/swap.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

54 lines
1.4 KiB
C

/* mpfr_swap (U, V) -- Swap U and V.
Copyright 2000-2004, 2006-2025 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/>. */
#include "mpfr-impl.h"
/* Using memcpy is a few slower than swapping by hand. */
void
mpfr_swap (mpfr_ptr u, mpfr_ptr v)
{
mpfr_prec_t p1, p2;
mpfr_sign_t s1, s2;
mpfr_exp_t e1, e2;
mp_limb_t *m1, *m2;
p1 = MPFR_PREC(u);
p2 = MPFR_PREC(v);
MPFR_PREC(v) = p1;
MPFR_PREC(u) = p2;
s1 = MPFR_SIGN(u);
s2 = MPFR_SIGN(v);
MPFR_SIGN(v) = s1;
MPFR_SIGN(u) = s2;
e1 = MPFR_EXP(u);
e2 = MPFR_EXP(v);
MPFR_EXP(v) = e1;
MPFR_EXP(u) = e2;
m1 = MPFR_MANT(u);
m2 = MPFR_MANT(v);
MPFR_MANT(v) = m1;
MPFR_MANT(u) = m2;
}