Mercurial > dropbear
view libtommath/bn_mp_clear.c @ 1495:0c16b4ccbd54
make signal flags volatile, simplify handling
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 14 Feb 2018 23:06:01 +0800 |
parents | 8bba51a55704 |
children | f52919ffd3b1 |
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#include <tommath_private.h> #include "dbhelpers.h" #ifdef BN_MP_CLEAR_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * * LibTomMath is a library that provides multiple-precision * integer arithmetic as well as number theoretic functionality. * * The library was designed directly after the MPI library by * Michael Fromberger but has been written from scratch with * additional optimizations in place. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://libtom.org */ /* clear one (frees) */ void mp_clear (mp_int * a) { /* only do anything if a hasn't been freed previously */ if (a->dp != NULL) { /* first zero the digits */ m_burn(a->dp, a->alloc * sizeof(*a->dp)); /* free ram */ XFREE(a->dp); /* reset members to make debugging easier */ a->dp = NULL; a->alloc = a->used = 0; a->sign = MP_ZPOS; } } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */