freebsd-dev/contrib/libgmp/mpf/iset_si.c
Mark Murray aa9bc17601 Clean import of libgmp 2.0.2, with only the non-x86 bits removed.
BMakefiles and other bits will follow.

Requested by:	Andrey Chernov
Made world by:	Chuck Robey
1996-10-20 08:49:26 +00:00

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;
}
}