annotate libtommath/bn_mp_dr_setup.c @ 1490:9b87cbe931e3

build: Remove unused constructs: `space' and `AC_PROG_MAKE_SET' The makefile variable `space' is never used. The autoconf output variable `SET_MAKE' is never used, so the autoconf macro `AC_PROG_MAKE_SET' has been removed.
author Michael Witten <mfwitten@gmail.com>
date Mon, 31 Jul 2017 23:55:52 +0000
parents 8bba51a55704
children f52919ffd3b1
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1 #include <tommath_private.h>
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2 #ifdef BN_MP_DR_SETUP_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://libtom.org
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16 */
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17
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18 /* determines the setup value */
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19 void mp_dr_setup(mp_int *a, mp_digit *d)
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20 {
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21 /* the casts are required if DIGIT_BIT is one less than
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22 * the number of bits in a mp_digit [e.g. DIGIT_BIT==31]
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23 */
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24 *d = (mp_digit)((((mp_word)1) << ((mp_word)DIGIT_BIT)) -
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25 ((mp_word)a->dp[0]));
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26 }
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28 #endif
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29
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30 /* ref: $Format:%D$ */
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31 /* git commit: $Format:%H$ */
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32 /* commit time: $Format:%ai$ */