Mercurial > dropbear
annotate libtommath/bn_mp_init_copy.c @ 1463:a3479d0d7e79
Merge pull request #48 from DengkeDu/dengke/configure-add-variable-to-allow-openpty-check-cached
configure: add a variable to allow openpty check to be cached
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Thu, 25 Jan 2018 21:58:00 +0800 |
| parents | 60fc6476e044 |
| children | 8bba51a55704 |
| rev | line source |
|---|---|
| 1436 | 1 #include <tommath_private.h> |
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2 #ifdef BN_MP_INIT_COPY_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 * |
| 1436 | 15 * Tom St Denis, [email protected], http://libtom.org |
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16 */ |
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17 |
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18 /* creates "a" then copies b into it */ |
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19 int mp_init_copy (mp_int * a, mp_int * b) |
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20 { |
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21 int res; |
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22 |
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Use mp_init_size() to avoid some mp_grow()s
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23 if ((res = mp_init_size (a, b->used)) != MP_OKAY) { |
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24 return res; |
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25 } |
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26 return mp_copy (b, a); |
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27 } |
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28 #endif |
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29 |
| 1436 | 30 /* $Source$ */ |
| 31 /* $Revision$ */ | |
| 32 /* $Date$ */ |