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/* mpf_init_set_si() -- Initialize a float and assign it from a signed int.
Copyright 1993-1995, 2000, 2001, 2003, 2004, 2012 Free Software Foundation,
Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see https://www.gnu.org/licenses/. */
#include "gmp.h"
#include "gmp-impl.h"
void
mpf_init_set_si (mpf_ptr r, long int val)
{
mp_size_t prec = __gmp_default_fp_limb_precision;
mp_size_t size;
mp_limb_t vl;
r->_mp_prec = prec;
r->_mp_d = (mp_ptr) (*__gmp_allocate_func) ((size_t) (prec + 1) * BYTES_PER_MP_LIMB);
vl = (mp_limb_t) ABS_CAST (unsigned long int, val);
r->_mp_d[0] = vl & GMP_NUMB_MASK;
size = vl != 0;
#if BITS_PER_ULONG > GMP_NUMB_BITS
vl >>= GMP_NUMB_BITS;
r->_mp_d[1] = vl;
size += (vl != 0);
#endif
r->_mp_exp = size;
r->_mp_size = val >= 0 ? size : -size;
}
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