prec.c

来自「该文件为c++的数学函数库!是一个非常有用的编程工具.它含有各种数学函数,为科学」· C语言 代码 · 共 76 行

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/* sys/prec.c *  * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman, Brian Gough *  * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. *  * This program 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 * General Public License for more details. *  * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *//* Author:  G. Jungman */#include <config.h>#include <gsl/gsl_machine.h>#include <gsl/gsl_precision.h>const double gsl_prec_eps[_GSL_PREC_T_NUM] = {  GSL_DBL_EPSILON,  GSL_FLT_EPSILON,  GSL_SFLT_EPSILON};const double gsl_prec_sqrt_eps[_GSL_PREC_T_NUM] = {  GSL_SQRT_DBL_EPSILON,  GSL_SQRT_FLT_EPSILON,  GSL_SQRT_SFLT_EPSILON};const double gsl_prec_root3_eps[_GSL_PREC_T_NUM] = {  GSL_ROOT3_DBL_EPSILON,  GSL_ROOT3_FLT_EPSILON,  GSL_ROOT3_SFLT_EPSILON};const double gsl_prec_root4_eps[_GSL_PREC_T_NUM] = {  GSL_ROOT4_DBL_EPSILON,  GSL_ROOT4_FLT_EPSILON,  GSL_ROOT4_SFLT_EPSILON};const double gsl_prec_root5_eps[_GSL_PREC_T_NUM] = {  GSL_ROOT5_DBL_EPSILON,  GSL_ROOT5_FLT_EPSILON,  GSL_ROOT5_SFLT_EPSILON};const double gsl_prec_root6_eps[_GSL_PREC_T_NUM] = {  GSL_ROOT6_DBL_EPSILON,  GSL_ROOT6_FLT_EPSILON,  GSL_ROOT6_SFLT_EPSILON};typedef unsigned int gsl_mode_t;#ifndef HIDE_INLINE_STATIC/* We need this somewhere, in case the inline is ignored. */unsigned int GSL_MODE_PREC(gsl_mode_t mt);unsigned intGSL_MODE_PREC(gsl_mode_t mt){   return  (mt & (unsigned int)7); }#endif

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