aa9bc17601
BMakefiles and other bits will follow. Requested by: Andrey Chernov Made world by: Chuck Robey
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* mpf_init_set_si() -- Initialize a float and assign it from a signed int.
|
|
|
|
Copyright (C) 1993, 1994, 1995 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 Library General Public License as published by
|
|
the Free Software Foundation; either version 2 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 Library General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA. */
|
|
|
|
#include "gmp.h"
|
|
#include "gmp-impl.h"
|
|
|
|
void
|
|
#if __STDC__
|
|
mpf_init_set_si (mpf_ptr r, long int val)
|
|
#else
|
|
mpf_init_set_si (r, val)
|
|
mpf_ptr r;
|
|
long int val;
|
|
#endif
|
|
{
|
|
mp_size_t prec = __gmp_default_fp_limb_precision;
|
|
r->_mp_d = (mp_ptr) (*_mp_allocate_func) ((prec + 1) * BYTES_PER_MP_LIMB);
|
|
r->_mp_prec = prec;
|
|
|
|
if (val > 0)
|
|
{
|
|
r->_mp_d[0] = val;
|
|
r->_mp_size = 1;
|
|
r->_mp_exp = 1;
|
|
}
|
|
else if (val < 0)
|
|
{
|
|
r->_mp_d[0] = -val;
|
|
r->_mp_size = -1;
|
|
r->_mp_exp = 1;
|
|
}
|
|
else
|
|
{
|
|
r->_mp_size = 0;
|
|
r->_mp_exp = 0;
|
|
}
|
|
}
|