Mercurial > dropbear
annotate libtommath/bn_mp_unsigned_bin_size.c @ 1218:b73c078e11e9
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author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 15 Dec 2015 22:23:42 +0800 |
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1 #include <tommath.h> |
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2 #ifdef BN_MP_UNSIGNED_BIN_SIZE_C |
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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.com |
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16 */ |
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17 |
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18 /* get the size for an unsigned equivalent */ |
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19 int mp_unsigned_bin_size (mp_int * a) |
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20 { |
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21 int size = mp_count_bits (a); |
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22 return (size / 8 + ((size & 7) != 0 ? 1 : 0)); |
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23 } |
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24 #endif |
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25 |
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26 /* $Source: /cvs/libtom/libtommath/bn_mp_unsigned_bin_size.c,v $ */ |
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27 /* $Revision: 1.3 $ */ |
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28 /* $Date: 2006/03/31 14:18:44 $ */ |