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142
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1 #include <tommath.h> |
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2 #ifdef BN_MP_CMP_C |
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2
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis |
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4 * |
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5 * LibTomMath is a library that provides multiple-precision |
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6 * integer arithmetic as well as number theoretic functionality. |
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7 * |
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8 * The library was designed directly after the MPI library by |
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9 * Michael Fromberger but has been written from scratch with |
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10 * additional optimizations in place. |
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11 * |
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12 * The library is free for all purposes without any express |
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13 * guarantee it works. |
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14 * |
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15 * Tom St Denis, [email protected], http://math.libtomcrypt.org |
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16 */ |
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17 |
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18 /* compare two ints (signed)*/ |
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19 int |
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20 mp_cmp (mp_int * a, mp_int * b) |
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21 { |
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22 /* compare based on sign */ |
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23 if (a->sign != b->sign) { |
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24 if (a->sign == MP_NEG) { |
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25 return MP_LT; |
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26 } else { |
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27 return MP_GT; |
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28 } |
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29 } |
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30 |
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31 /* compare digits */ |
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32 if (a->sign == MP_NEG) { |
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33 /* if negative compare opposite direction */ |
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34 return mp_cmp_mag(b, a); |
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35 } else { |
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36 return mp_cmp_mag(a, b); |
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37 } |
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38 } |
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142
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39 #endif |
