pb_clear.c

   1 /* LibTomPoly, Polynomial Basis Math -- Tom St Denis
   2  *
   3  * LibTomPoly is a public domain library that provides
   4  * polynomial basis arithmetic support.  It relies on
   5  * LibTomMath for large integer support.
   6  *
   7  * This library is free for all purposes without any
   8  * express guarantee that it works.
   9  *
  10  * Tom St Denis, tomstdenis@iahu.ca, http://poly.libtomcrypt.org
  11  */
  12 #include <tompoly.h>
  13
  14 void pb_clear(pb_poly *a)
  15 {
  16    int x;
  17
  18    if (a->terms != NULL) {
  19       /* free stuff */
  20       for (x = 0; x < a->alloc; x++) {
  21           mp_clear(&(a->terms[x]));
  22       }
  23       free(a->terms);
  24       mp_clear(&(a->characteristic));
  25
  26       /* prevent double frees */
  27       a->terms = NULL;
  28       a->alloc = a->used = 0;
  29    }
  30 }
  31
  32