28 lines
635 B
C
28 lines
635 B
C
#include "tommath_private.h"
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#ifdef BN_MP_CLEAR_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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/* clear one (frees) */
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void mp_clear(mp_int *a)
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{
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int i;
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/* only do anything if a hasn't been freed previously */
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if (a->dp != NULL) {
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/* first zero the digits */
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for (i = 0; i < a->used; i++) {
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a->dp[i] = 0;
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}
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/* free ram */
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XFREE(a->dp, sizeof(mp_digit) * (size_t)a->alloc);
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/* reset members to make debugging easier */
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a->dp = NULL;
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a->alloc = a->used = 0;
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a->sign = MP_ZPOS;
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}
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}
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#endif
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