# Copyright (C) Gaston H. Gonnet # 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ############################################################## # Hardware FP characteristics (typical results of enquire) # # (this is for the target machine) # # http://www.cwi.nl/~steven/enquire.html # ############################################################## # /* float.h for target with IEEE 32/64 bit and Intel 386 style 80 bit # floating point formats */ # /* Radix of exponent representation */ FLT_RADIX := 2: # /* Number of base-FLT_RADIX digits in the significand of a double */ DBL_MANT_DIG := 53: # /* Difference between 1.0 and the minimum double greater than 1.0 */ DBL_EPSILON := 2.2204460492503131e-16: # /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */ DBL_MIN_EXP := (-1021): # /* Minimum normalised double */ DBL_MIN := 2.2250738585072014e-308: # /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */ DBL_MAX_EXP := 1024: # /* Maximum double */ DBL_MAX := 1.7976931348623157e+308: ################################################################### B := FLT_RADIX: ML := DBL_MANT_DIG-1: DBL_MIN := B^round(ln(DBL_MIN)/ln(B)): DBL_MAX := B^round(ln(DBL_MAX)/ln(B)) * (1-1/B^DBL_MANT_DIG):