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author | William Joye <wjoye@cfa.harvard.edu> | 2018-12-25 17:48:54 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2018-12-25 17:48:54 (GMT) |
commit | 8eb0f61e2e27ef6594eee8bcf68d574fb087fe66 (patch) | |
tree | fc0f3692516c8c3e8090df20223d342a1b64df93 /tcl8.6/libtommath/bn_mp_init.c | |
parent | 5f5fd2864a3193a8d5da12fcb92ba7379084c286 (diff) | |
download | blt-8eb0f61e2e27ef6594eee8bcf68d574fb087fe66.zip blt-8eb0f61e2e27ef6594eee8bcf68d574fb087fe66.tar.gz blt-8eb0f61e2e27ef6594eee8bcf68d574fb087fe66.tar.bz2 |
update tcl/tk
Diffstat (limited to 'tcl8.6/libtommath/bn_mp_init.c')
-rw-r--r-- | tcl8.6/libtommath/bn_mp_init.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tcl8.6/libtommath/bn_mp_init.c b/tcl8.6/libtommath/bn_mp_init.c new file mode 100644 index 0000000..ddb2d07 --- /dev/null +++ b/tcl8.6/libtommath/bn_mp_init.c @@ -0,0 +1,42 @@ +#include <tommath.h> +#ifdef BN_MP_INIT_C +/* LibTomMath, multiple-precision integer library -- Tom St Denis + * + * LibTomMath is a library that provides multiple-precision + * integer arithmetic as well as number theoretic functionality. + * + * The library was designed directly after the MPI library by + * Michael Fromberger but has been written from scratch with + * additional optimizations in place. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com + */ + +/* init a new mp_int */ +int mp_init (mp_int * a) +{ + int i; + + /* allocate memory required and clear it */ + a->dp = OPT_CAST(mp_digit) XMALLOC (sizeof (mp_digit) * MP_PREC); + if (a->dp == NULL) { + return MP_MEM; + } + + /* set the digits to zero */ + for (i = 0; i < MP_PREC; i++) { + a->dp[i] = 0; + } + + /* set the used to zero, allocated digits to the default precision + * and sign to positive */ + a->used = 0; + a->alloc = MP_PREC; + a->sign = MP_ZPOS; + + return MP_OKAY; +} +#endif |