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kc3-lang/libtommath/bn_mp_init.c

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  • Author : Francois Perrad
    Date : 2017-08-30 19:11:35
    Hash : 4439fae1
    Message : format with astyle (step 3)

  • bn_mp_init.c
  • #include <tommath_private.h>
    #ifdef BN_MP_INIT_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
     */
    
    /* init a new mp_int */
    int mp_init(mp_int *a)
    {
       int i;
    
       /* allocate memory required and clear it */
       a->dp = OPT_CAST(mp_digit) XMALLOC(sizeof(mp_digit) * MP_PREC);
       if (a->dp == NULL) {
          return MP_MEM;
       }
    
       /* set the digits to zero */
       for (i = 0; i < MP_PREC; i++) {
          a->dp[i] = 0;
       }
    
       /* set the used to zero, allocated digits to the default precision
        * and sign to positive */
       a->used  = 0;
       a->alloc = MP_PREC;
       a->sign  = MP_ZPOS;
    
       return MP_OKAY;
    }
    #endif
    
    /* ref:         $Format:%D$ */
    /* git commit:  $Format:%H$ */
    /* commit time: $Format:%ai$ */