|
Packit |
5c3484 |
/* mpf_cmp_d -- compare mpf and double.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
Copyright 2001, 2003 Free Software Foundation, Inc.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
This file is part of the GNU MP Library.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
Packit |
5c3484 |
it under the terms of either:
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
* the GNU Lesser General Public License as published by the Free
|
|
Packit |
5c3484 |
Software Foundation; either version 3 of the License, or (at your
|
|
Packit |
5c3484 |
option) any later version.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
or
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
* the GNU General Public License as published by the Free Software
|
|
Packit |
5c3484 |
Foundation; either version 2 of the License, or (at your option) any
|
|
Packit |
5c3484 |
later version.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
or both in parallel, as here.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
The GNU MP Library is distributed in the hope that it will be useful, but
|
|
Packit |
5c3484 |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
Packit |
5c3484 |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
Packit |
5c3484 |
for more details.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
You should have received copies of the GNU General Public License and the
|
|
Packit |
5c3484 |
GNU Lesser General Public License along with the GNU MP Library. If not,
|
|
Packit |
5c3484 |
see https://www.gnu.org/licenses/. */
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
#include "config.h"
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
#if HAVE_FLOAT_H
|
|
Packit |
5c3484 |
#include <float.h> /* for DBL_MAX */
|
|
Packit |
5c3484 |
#endif
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
#include "gmp.h"
|
|
Packit |
5c3484 |
#include "gmp-impl.h"
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
int
|
|
Packit |
5c3484 |
mpf_cmp_d (mpf_srcptr f, double d)
|
|
Packit |
5c3484 |
{
|
|
Packit |
5c3484 |
mp_limb_t darray[LIMBS_PER_DOUBLE];
|
|
Packit |
5c3484 |
mpf_t df;
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
/* d=NaN has no sensible return value, so raise an exception.
|
|
Packit |
5c3484 |
d=Inf or -Inf is always bigger than z. */
|
|
Packit |
5c3484 |
DOUBLE_NAN_INF_ACTION (d,
|
|
Packit |
5c3484 |
__gmp_invalid_operation (),
|
|
Packit |
5c3484 |
return (d < 0.0 ? 1 : -1));
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
if (d == 0.0)
|
|
Packit |
5c3484 |
return SIZ(f);
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
PTR(df) = darray;
|
|
Packit |
5c3484 |
SIZ(df) = (d >= 0.0 ? LIMBS_PER_DOUBLE : -LIMBS_PER_DOUBLE);
|
|
Packit |
5c3484 |
EXP(df) = __gmp_extract_double (darray, ABS(d));
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
return mpf_cmp (f, df);
|
|
Packit |
5c3484 |
}
|