kc3-lang/libtommath/bn_mp_init_size.c

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• Hash : 28e61778
  Author :
  Date : 2019-03-22T15:26:59
  

  remove OPT_CAST The explicit cast does not hurt in C. Furthermore the explicit cast is needed if tommath is compiled as C with strict warning settings.

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• bn_mp_init_size.c

• #include "tommath_private.h"
  #ifdef BN_MP_INIT_SIZE_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.
   *
   * SPDX-License-Identifier: Unlicense
   */
  
  /* init an mp_init for a given size */
  int mp_init_size(mp_int *a, int size)
  {
     int x;
  
     /* pad size so there are always extra digits */
     size += (MP_PREC * 2) - (size % MP_PREC);
  
     /* alloc mem */
     a->dp = (mp_digit*) XMALLOC(sizeof(mp_digit) * (size_t)size);
     if (a->dp == NULL) {
        return MP_MEM;
     }
  
     /* set the members */
     a->used  = 0;
     a->alloc = size;
     a->sign  = MP_ZPOS;
  
     /* zero the digits */
     for (x = 0; x < size; x++) {
        a->dp[x] = 0;
     }
  
     return MP_OKAY;
  }
  #endif
  
  /* ref:         $Format:%D$ */
  /* git commit:  $Format:%H$ */
  /* commit time: $Format:%ai$ */
  

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