File indexing completed on 2024-05-12 05:55:14

 /* floatlong.h: portable double size integer arithmetic */
 /*
     Copyright (C) 2007, 2008 Wolf Lammen.
 
     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; see the file COPYING.  If not, write to:
 
       The Free Software Foundation, Inc.
       59 Temple Place, Suite 330
       Boston, MA 02111-1307 USA.
 
 
     You may contact the author by:
        e-mail:  ookami1 <at> gmx <dot> de
        mail:  Wolf Lammen
               Oertzweg 45
               22307 Hamburg
               Germany
 
 *************************************************************************/
 
 
 #ifndef FLOATLONG_H
 # define FLOATLONG_H
 
 #include "floatconfig.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #define BITS_IN_UNSIGNED (sizeof(unsigned)*8)
 
 /* one unsigned extra, so that _bitsubstr() does not access parts
    outside of t_uarray */
 #define UARRAYLG ((8305*(MATHPRECISION+5) + 1)/20000/sizeof(unsigned) + 2)
 
 typedef unsigned t_uarray[UARRAYLG];
 
 typedef struct{
   int length;
   t_uarray value;
 } t_longint;
 
 int _findfirstbit(unsigned value);
 char _longadd(unsigned* s1, unsigned* s2);
 char _longmul(unsigned* f1, unsigned* f2);
 char _checkadd(int* s1, int s2);
 char _checkmul(int* f1, int f2);
 unsigned _longshr(unsigned low, unsigned high, char shift);
 unsigned _longshl(unsigned low, unsigned high, char shift);
 unsigned _longarrayadd(unsigned* uarray, int lg, unsigned incr);
 unsigned _longarraymul(unsigned* uarray, int lg, unsigned factor);
 void _orsubstr(unsigned* uarray, int bitofs, unsigned value);
 unsigned _bitsubstr(unsigned* uarray, int ofs);
 unsigned _bitlength(t_longint* l);
 unsigned _lastnonzerobit(t_longint* l);
 char _longintsetsize(t_longint* l, unsigned bitlength);
 unsigned _longintadd(t_longint* l, unsigned summand);
 unsigned _longintmul(t_longint* l, unsigned factor);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* FLOATLONG_H */