41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* mpz_get_si(integer) -- Return the least significant digit from INTEGER.
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Copyright (C) 1991 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 General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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The GNU MP Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the GNU MP Library; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "gmp.h"
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#include "gmp-impl.h"
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signed long int
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#ifdef __STDC__
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mpz_get_si (const MP_INT *integer)
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#else
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mpz_get_si (integer)
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const MP_INT *integer;
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#endif
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{
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mp_size size = integer->size;
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if (size > 0)
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return integer->d[0] % ((mp_limb) 1 << (BITS_PER_MP_LIMB - 1));
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else if (size < 0)
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return -(integer->d[0] % ((mp_limb) 1 << (BITS_PER_MP_LIMB - 1)));
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else
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return 0;
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}
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