33 lines
649 B
C
33 lines
649 B
C
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#include "tommath_private.h"
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#ifdef MP_INIT_SIZE_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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/* init an mp_init for a given size */
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mp_err mp_init_size(mp_int *a, int size)
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{
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if (size < 0) {
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return MP_VAL;
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}
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size = MP_MAX(MP_MIN_DIGIT_COUNT, size);
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if (size > MP_MAX_DIGIT_COUNT) {
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return MP_OVF;
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}
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/* alloc mem */
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a->dp = (mp_digit *) MP_CALLOC((size_t)size, sizeof(mp_digit));
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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 members */
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a->used = 0;
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a->alloc = size;
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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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