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/* mpfr_d_div -- divide a machine double precision float
by a multiple precision floating-point number
Copyright 2007 Free Software Foundation, Inc.
Contributed by the Arenaire and Cacao projects, INRIA.
This file is part of the MPFR Library.
The MPFR 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 2.1 of the License, or (at your
option) any later version.
The MPFR 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 MPFR Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "mpfr-impl.h"
int
mpfr_d_div (mpfr_ptr a, double b, mpfr_srcptr c, mp_rnd_t rnd_mode)
{
int inexact;
mpfr_t d;
MPFR_SAVE_EXPO_DECL (expo);
MPFR_LOG_FUNC (("b=%.20g c[%#R]=%R rnd=%d", b, c, c, rnd_mode),
("a[%#R]=%R", a, a));
MPFR_SAVE_EXPO_MARK (expo);
mpfr_init2 (d, IEEE_DBL_MANT_DIG);
inexact = mpfr_set_d (d, b, rnd_mode);
MPFR_ASSERTN (inexact == 0);
inexact = mpfr_div (a, d, c, rnd_mode);
if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (a)))
{
MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
}
mpfr_clear(d);
MPFR_SAVE_EXPO_FREE (expo);
return mpfr_check_range (a, inexact, rnd_mode);
}
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