45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
#include <tommath_private.h>
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#ifdef BN_MP_INIT_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis
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*
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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
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*
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* The library was designed directly after the MPI library by
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* Michael Fromberger but has been written from scratch with
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* additional optimizations in place.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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/* init a new mp_int */
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int mp_init(mp_int *a)
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{
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int i;
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/* allocate memory required and clear it */
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a->dp = OPT_CAST(mp_digit) XMALLOC(sizeof(mp_digit) * (size_t)MP_PREC);
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if (a->dp == NULL) {
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return MP_MEM;
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}
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/* set the digits to zero */
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for (i = 0; i < MP_PREC; i++) {
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a->dp[i] = 0;
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}
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/* set the used to zero, allocated digits to the default precision
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* and sign to positive */
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a->used = 0;
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a->alloc = MP_PREC;
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a->sign = MP_ZPOS;
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return MP_OKAY;
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}
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#endif
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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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