pqc/external/libtompoly-0.04/pb_cmp.c

33 lines
719 B
C

/* LibTomPoly, Polynomial Basis Math -- Tom St Denis
*
* LibTomPoly is a public domain library that provides
* polynomial basis arithmetic support. It relies on
* LibTomMath for large integer support.
*
* This library is free for all purposes without any
* express guarantee that it works.
*
* Tom St Denis, tomstdenis@iahu.ca, http://poly.libtomcrypt.org
*/
#include <tompoly.h>
int pb_cmp(pb_poly *a, pb_poly *b)
{
int x;
if (a->used > b->used) {
return PB_DEG_GT;
} else if (a->used < b->used) {
return PB_DEG_LT;
}
for (x = 0; x < a->used; x++) {
if (mp_cmp(&(a->terms[x]), &(b->terms[x])) != MP_EQ) {
return PB_DEG_EQ;
}
}
return PB_EQ;
}