mpfr-2.4.1/set_dfl_prec.c

/* mpfr_set_default_prec, mpfr_get_default_prec -- set/get default precision

Copyright 1999, 2000, 2001, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
Contributed by the Arenaire and Cacao projects, INRIA.

This file is part of the GNU MPFR Library.

The GNU 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 GNU 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 GNU 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"

/* default is IEEE double precision, i.e. 53 bits */
mp_prec_t MPFR_THREAD_ATTR __gmpfr_default_fp_bit_precision \
  = IEEE_DBL_MANT_DIG;

void
mpfr_set_default_prec (mp_prec_t prec)
{
  MPFR_ASSERTN (prec >= MPFR_PREC_MIN && prec <= MPFR_PREC_MAX);
  __gmpfr_default_fp_bit_precision = prec;
}

#undef mpfr_get_default_prec
mp_prec_t
mpfr_get_default_prec (void)
{
  return __gmpfr_default_fp_bit_precision;
}