db9a47d514
This is similar to the signatures of the custom allocation functions provided by GMP. The allocation sizes are useful if the allocator has no easy way to access the allocation size.
41 lines
1.0 KiB
C
41 lines
1.0 KiB
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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*
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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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* SPDX-License-Identifier: Unlicense
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*/
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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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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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