69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
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/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2012 Fredrik Johansson
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******************************************************************************/
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#ifndef DOUBLE_EXTRAS_H
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#define DOUBLE_EXTRAS_H
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#undef ulong
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#define ulong ulongxx /* interferes with system includes */
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#include <math.h>
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#undef ulong
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#include <float.h>
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#include <gmp.h>
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#include "flint.h"
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#define ulong mp_limb_t
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define D_BITS 53
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#define D_EPS 2.2204460492503130808e-16
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#define D_INF HUGE_VAL
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#define D_NAN (HUGE_VAL - HUGE_VAL)
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double d_randtest(flint_rand_t state);
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static __inline__ double
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d_polyval(const double * poly, int len, double x)
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{
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double t;
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int i;
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for (t = poly[len-1], i = len-2; i >= 0; i--)
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t = poly[i] + x * t;
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return t;
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}
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double d_lambertw(double x);
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#ifdef __cplusplus
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}
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#endif
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#endif
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