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annotate libtommath/bn_mp_init_multi.c @ 1691:2d3745d58843

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try rearrange travis build matrix
author Matt Johnston <matt@ucc.asn.au>
date Tue, 26 May 2020 23:27:26 +0800
parents f52919ffd3b1
children 1051e4eea25a
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1 #include "tommath_private.h"
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2 #ifdef BN_MP_INIT_MULTI_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 * SPDX-License-Identifier: Unlicense
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13 */
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14
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15 #include <stdarg.h>
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16
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17 int mp_init_multi(mp_int *mp, ...)
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18 {
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19 mp_err res = MP_OKAY; /* Assume ok until proven otherwise */
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20 int n = 0; /* Number of ok inits */
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21 mp_int *cur_arg = mp;
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22 va_list args;
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23
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24 va_start(args, mp); /* init args to next argument from caller */
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25 while (cur_arg != NULL) {
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26 if (mp_init(cur_arg) != MP_OKAY) {
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27 /* Oops - error! Back-track and mp_clear what we already
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28 succeeded in init-ing, then return error.
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29 */
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30 va_list clean_args;
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31
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32 /* now start cleaning up */
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33 cur_arg = mp;
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34 va_start(clean_args, mp);
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35 while (n-- != 0) {
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36 mp_clear(cur_arg);
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37 cur_arg = va_arg(clean_args, mp_int *);
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38 }
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39 va_end(clean_args);
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40 res = MP_MEM;
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41 break;
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42 }
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43 n++;
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44 cur_arg = va_arg(args, mp_int *);
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45 }
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46 va_end(args);
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47 return res; /* Assumed ok, if error flagged above. */
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48 }
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50 #endif
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51
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52 /* ref: HEAD -> master, tag: v1.1.0 */
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53 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
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54 /* commit time: 2019-01-28 20:32:32 +0100 */