efee5258bc
The MPFR library is a C library for multiple-precision floating-point computations with exact rounding (also called correct rounding). It is based on the GMP multiple-precision library and should replace the MPF class in further releases of GMP. GCC >= 4.2 requires MPFR.
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* mpfr_set_default_prec, mpfr_get_default_prec -- set/get default precision
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Copyright 1999, 2000, 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
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Contributed by the Arenaire and Cacao projects, INRIA.
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This file is part of the GNU MPFR Library.
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The GNU MPFR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU MPFR Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
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http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
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#include "mpfr-impl.h"
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/* default is IEEE double precision, i.e. 53 bits */
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mpfr_prec_t MPFR_THREAD_ATTR __gmpfr_default_fp_bit_precision \
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= IEEE_DBL_MANT_DIG;
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void
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mpfr_set_default_prec (mpfr_prec_t prec)
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{
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MPFR_ASSERTN (prec >= MPFR_PREC_MIN && prec <= MPFR_PREC_MAX);
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__gmpfr_default_fp_bit_precision = prec;
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}
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#undef mpfr_get_default_prec
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mpfr_prec_t
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mpfr_get_default_prec (void)
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{
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return __gmpfr_default_fp_bit_precision;
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}
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