44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* mpz_fib2_ui -- calculate Fibonacci numbers.
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Copyright 2001 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 the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include "mpir.h"
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#include "gmp-impl.h"
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void
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mpz_fib2_ui (mpz_ptr fn, mpz_ptr fnsub1, mpir_ui n)
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{
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mp_ptr fp, f1p;
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mp_size_t size;
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size = MPN_FIB2_SIZE (n);
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MPZ_REALLOC (fn, size);
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MPZ_REALLOC (fnsub1, size);
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fp = PTR (fn);
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f1p = PTR (fnsub1);
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size = mpn_fib2_ui (fp, f1p, n);
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SIZ(fn) = size - (n == 0);
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SIZ(fnsub1) = size - (f1p[size-1] == 0);
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}
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