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/* mpn_mulmid_n -- balanced middle product
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Contributed by David Harvey.
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THE FUNCTION IN THIS FILE IS INTERNAL WITH A MUTABLE INTERFACE. IT IS ONLY
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SAFE TO REACH IT THROUGH DOCUMENTED INTERFACES. IN FACT, IT IS ALMOST
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GUARANTEED THAT IT'LL CHANGE OR DISAPPEAR IN A FUTURE GNU MP RELEASE.
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Copyright 2011 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/. */
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#include "gmp.h"
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#include "gmp-impl.h"
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void
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mpn_mulmid_n (mp_ptr rp, mp_srcptr ap, mp_srcptr bp, mp_size_t n)
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{
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ASSERT (n >= 1);
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ASSERT (! MPN_OVERLAP_P (rp, n + 2, ap, 2*n - 1));
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ASSERT (! MPN_OVERLAP_P (rp, n + 2, bp, n));
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if (n < MULMID_TOOM42_THRESHOLD)
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{
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mpn_mulmid_basecase (rp, ap, 2*n - 1, bp, n);
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}
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else
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{
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mp_ptr scratch;
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TMP_DECL;
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TMP_MARK;
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scratch = TMP_ALLOC_LIMBS (mpn_toom42_mulmid_itch (n));
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mpn_toom42_mulmid (rp, ap, bp, n, scratch);
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TMP_FREE;
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}
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}
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