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Hash :
795cd201
Author :
Date :
2019-10-29T21:48:50
simplifications: add s_mp_zero_(digs|buf) and s_mp_copy_digs Originally I made those as macros. However we have many other small functions like mp_clamp, mp_exch which are also not implemented as macros right now. If we would use c99, I would implement them as private static inline functions. And mp_exch would be a public static inline function. But since we are bound to c89, we simply use normal functions. To achieve optimal performance one should either use link time optimization or amalgamation.
#include "tommath_private.h"
#ifdef MP_CLEAR_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* clear one (frees) */
void mp_clear(mp_int *a)
{
/* only do anything if a hasn't been freed previously */
if (a->dp != NULL) {
/* free ram */
MP_FREE_DIGS(a->dp, a->alloc);
/* reset members to make debugging easier */
a->dp = NULL;
a->alloc = a->used = 0;
a->sign = MP_ZPOS;
}
}
#endif