c3-lang/libtommath/bncore.c

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• Hash : 4e3f1344
  Author :
  Date : 2015-11-12T01:49:07
  

  provide tommath_private.h tommath.h contains declarations for the public part of the library. tommath_private.h contains the functions which are private to ltm and should not be exposed to the public.

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• bncore.c

• #include <tommath_private.h>
  #ifdef BNCORE_C
  /* LibTomMath, multiple-precision integer library -- Tom St Denis
   *
   * LibTomMath is a library that provides multiple-precision
   * integer arithmetic as well as number theoretic functionality.
   *
   * The library was designed directly after the MPI library by
   * Michael Fromberger but has been written from scratch with
   * additional optimizations in place.
   *
   * The library is free for all purposes without any express
   * guarantee it works.
   *
   * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
   */
  
  /* Known optimal configurations
  
   CPU                    /Compiler     /MUL CUTOFF/SQR CUTOFF
  -------------------------------------------------------------
   Intel P4 Northwood     /GCC v3.4.1   /        88/       128/LTM 0.32 ;-)
   AMD Athlon64           /GCC v3.4.4   /        80/       120/LTM 0.35
   
  */
  
  int     KARATSUBA_MUL_CUTOFF = 80,      /* Min. number of digits before Karatsuba multiplication is used. */
          KARATSUBA_SQR_CUTOFF = 120,     /* Min. number of digits before Karatsuba squaring is used. */
          
          TOOM_MUL_CUTOFF      = 350,      /* no optimal values of these are known yet so set em high */
          TOOM_SQR_CUTOFF      = 400; 
  #endif
  
  /* $Source$ */
  /* $Revision$ */
  /* $Date$ */
  

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