pb_clamp.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_clamp(pb_poly *a)
  15 {
  16    while (a->used > 0 && (mp_iszero(&(a->terms[a->used-1])) == MP_YES)) {
  17        --(a->used);
  18    }
  19 }
  20
  21