libtommath/mp_init.c
2019-12-05 10:52:41 +01:00

24 lines
599 B
C

#include "tommath_private.h"
#ifdef MP_INIT_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* init a new mp_int */
mp_err mp_init(mp_int *a)
{
/* allocate memory required and clear it */
a->dp = (mp_digit *) MP_CALLOC((size_t)MP_DEFAULT_DIGIT_COUNT, sizeof(mp_digit));
if (a->dp == NULL) {
return MP_MEM;
}
/* set the used to zero, allocated digits to the default precision
* and sign to positive */
a->used = 0;
a->alloc = MP_DEFAULT_DIGIT_COUNT;
a->sign = MP_ZPOS;
return MP_OKAY;
}
#endif