mirror of
https://review.haiku-os.org/buildtools
synced 2025-02-16 10:47:48 +01:00
4c74403188
Change-Id: Iae65e95cfa0d92091b8b0a424ae36d88efa76aa9 Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3020 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* mpn_mulmid_n -- balanced middle product
|
|
|
|
Contributed by David Harvey.
|
|
|
|
THE FUNCTION IN THIS FILE IS INTERNAL WITH A MUTABLE INTERFACE. IT IS ONLY
|
|
SAFE TO REACH IT THROUGH DOCUMENTED INTERFACES. IN FACT, IT IS ALMOST
|
|
GUARANTEED THAT IT'LL CHANGE OR DISAPPEAR IN A FUTURE GNU MP RELEASE.
|
|
|
|
Copyright 2011 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU MP Library.
|
|
|
|
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
it under the terms of either:
|
|
|
|
* 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.
|
|
|
|
or
|
|
|
|
* the GNU General Public License as published by the Free Software
|
|
Foundation; either version 2 of the License, or (at your option) any
|
|
later version.
|
|
|
|
or both in parallel, as here.
|
|
|
|
The GNU MP 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 General Public License
|
|
for more details.
|
|
|
|
You should have received copies of the GNU General Public License and the
|
|
GNU Lesser General Public License along with the GNU MP Library. If not,
|
|
see https://www.gnu.org/licenses/. */
|
|
|
|
|
|
#include "gmp-impl.h"
|
|
|
|
|
|
void
|
|
mpn_mulmid_n (mp_ptr rp, mp_srcptr ap, mp_srcptr bp, mp_size_t n)
|
|
{
|
|
ASSERT (n >= 1);
|
|
ASSERT (! MPN_OVERLAP_P (rp, n + 2, ap, 2*n - 1));
|
|
ASSERT (! MPN_OVERLAP_P (rp, n + 2, bp, n));
|
|
|
|
if (n < MULMID_TOOM42_THRESHOLD)
|
|
{
|
|
mpn_mulmid_basecase (rp, ap, 2*n - 1, bp, n);
|
|
}
|
|
else
|
|
{
|
|
mp_ptr scratch;
|
|
TMP_DECL;
|
|
TMP_MARK;
|
|
scratch = TMP_ALLOC_LIMBS (mpn_toom42_mulmid_itch (n));
|
|
mpn_toom42_mulmid (rp, ap, bp, n, scratch);
|
|
TMP_FREE;
|
|
}
|
|
}
|