| #include <tommath.h> |
| #ifdef BN_MP_CMP_D_C |
| /* LibTomMath, multiple-precision integer library -- Tom St Denis |
| * |
| * LibTomMath is a library that provides multiple-precision |
| * integer arithmetic as well as number theoretic functionality. |
| * |
| * The library was 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@gmail.com, http://math.libtomcrypt.com |
| */ |
| |
| /* compare a digit */ |
| int mp_cmp_d(mp_int * a, mp_digit b) |
| { |
| /* compare based on sign */ |
| if (a->sign == MP_NEG) { |
| return MP_LT; |
| } |
| |
| /* compare based on magnitude */ |
| if (a->used > 1) { |
| return MP_GT; |
| } |
| |
| /* compare the only digit of a to b */ |
| if (a->dp[0] > b) { |
| return MP_GT; |
| } else if (a->dp[0] < b) { |
| return MP_LT; |
| } else { |
| return MP_EQ; |
| } |
| } |
| #endif |
| |
| /* $Source: /cvs/libtom/libtommath/bn_mp_cmp_d.c,v $ */ |
| /* $Revision: 1.3 $ */ |
| /* $Date: 2006/03/31 14:18:44 $ */ |
