mp_clear.c

   1 #include "tommath_private.h"
   2 #ifdef MP_CLEAR_C
   3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
   4 /* SPDX-License-Identifier: Unlicense */
   5
   6 /* clear one (frees)  */
   7 void mp_clear(mp_int *a)
   8 {
   9    /* only do anything if a hasn't been freed previously */
  10    if (a->dp != NULL) {
  11       /* free ram */
  12       MP_FREE_DIGS(a->dp, a->alloc);
  13
  14       /* reset members to make debugging easier */
  15       a->dp    = NULL;
  16       a->alloc = a->used = 0;
  17       a->sign  = MP_ZPOS;
  18    }
  19 }
  20 #endif