/* LibTomMath, multiple-precision integer library -- Tom St Denis * * LibTomMath is library that provides for multiple-precision * integer arithmetic as well as number theoretic functionality. * * The library is 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, tomstdenis@iahu.ca, http://libtommath.iahu.ca */ #include /* compare maginitude of two ints (unsigned) */ int mp_cmp_mag (mp_int * a, mp_int * b) { int n; /* compare based on # of non-zero digits */ if (a->used > b->used) { return MP_GT; } else if (a->used < b->used) { return MP_LT; } /* compare based on digits */ for (n = a->used - 1; n >= 0; n--) { if (a->dp[n] > b->dp[n]) { return MP_GT; } else if (a->dp[n] < b->dp[n]) { return MP_LT; } } return MP_EQ; }