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f133d007f9
Old version was from 2012-05-06, 6.1.2 is from 2016-12-16 A lot of support for newer processors and speedups since then See gmp/NEWS for details
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* mpz_ui_pow_ui -- ulong raised to ulong.
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Copyright 2001, 2002 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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mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e)
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{
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#if GMP_NAIL_BITS != 0
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if (b > GMP_NUMB_MAX)
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{
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mp_limb_t bb[2];
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bb[0] = b & GMP_NUMB_MASK;
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bb[1] = b >> GMP_NUMB_BITS;
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mpz_n_pow_ui (r, bb, (mp_size_t) 2, e);
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}
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else
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#endif
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{
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#ifdef _LONG_LONG_LIMB
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/* i386 gcc 2.95.3 doesn't recognise blimb can be eliminated when
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mp_limb_t is an unsigned long, so only use a separate blimb when
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necessary. */
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mp_limb_t blimb = b;
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mpz_n_pow_ui (r, &blimb, (mp_size_t) (b != 0), e);
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#else
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mpz_n_pow_ui (r, &b, (mp_size_t) (b != 0), e);
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#endif
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}
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}
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