kc3-lang/libtommath/bn_mp_shrink.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_shrink.c

• #include "tommath_private.h"
  #ifdef BN_MP_SHRINK_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
   */
  
  /* shrink a bignum */
  int mp_shrink(mp_int *a)
  {
     mp_digit *tmp;
     int used = 1;
  
     if (a->used > 0) {
        used = a->used;
     }
  
     if (a->alloc != used) {
        if ((tmp = (mp_digit*) XREALLOC(a->dp, sizeof(mp_digit) * (size_t)used)) == NULL) {
           return MP_MEM;
        }
        a->dp    = tmp;
        a->alloc = used;
     }
     return MP_OKAY;
  }
  #endif
  
  /* ref:         $Format:%D$ */
  /* git commit:  $Format:%H$ */
  /* commit time: $Format:%ai$ */
  

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