version 1.1.1.2, 2000/09/09 14:12:57 |
version 1.1.1.3, 2003/08/25 16:06:33 |
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/* mpz_set_si(integer, val) -- Assign INTEGER with a small value VAL. |
/* mpz_set_si(dest,val) -- Assign DEST with a small value VAL. |
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Copyright (C) 1991, 1993, 1994, 1995, 2000 Free Software Foundation, Inc. |
Copyright 1991, 1993, 1994, 1995, 2000, 2001, 2002 Free Software Foundation, |
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Inc. |
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This file is part of the GNU MP Library. |
This file is part of the GNU MP Library. |
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Line 23 MA 02111-1307, USA. */ |
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Line 24 MA 02111-1307, USA. */ |
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#include "gmp-impl.h" |
#include "gmp-impl.h" |
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void |
void |
#if __STDC__ |
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mpz_set_si (mpz_ptr dest, signed long int val) |
mpz_set_si (mpz_ptr dest, signed long int val) |
#else |
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mpz_set_si (dest, val) |
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mpz_ptr dest; |
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signed long int val; |
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#endif |
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{ |
{ |
/* We don't check if the allocation is enough, since the rest of the |
mp_size_t size; |
package ensures it's at least 1, which is what we need here. */ |
mp_limb_t vl; |
if (val > 0) |
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vl = (mp_limb_t) (unsigned long int) (val >= 0 ? val : -val); |
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dest->_mp_d[0] = vl & GMP_NUMB_MASK; |
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size = vl != 0; |
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#if GMP_NAIL_BITS != 0 |
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if (vl > GMP_NUMB_MAX) |
{ |
{ |
dest->_mp_d[0] = val; |
MPZ_REALLOC (dest, 2); |
dest->_mp_size = 1; |
dest->_mp_d[1] = vl >> GMP_NUMB_BITS; |
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size = 2; |
} |
} |
else if (val < 0) |
#endif |
{ |
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dest->_mp_d[0] = (unsigned long) -val; |
dest->_mp_size = val >= 0 ? size : -size; |
dest->_mp_size = -1; |
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} |
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else |
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dest->_mp_size = 0; |
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} |
} |