Mercurial > dropbear
view libtommath/bn_mp_neg.c @ 1796:74f4a5987234
Update netio.c (#115)
Moved allocated_lport_p and allocated_lport at begin of block to buld in C89
author | Guillaume Picquet <guillaume.picquet@gls-france.com> |
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date | Thu, 04 Mar 2021 13:50:13 +0100 |
parents | 1051e4eea25a |
children |
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#include "tommath_private.h" #ifdef BN_MP_NEG_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* b = -a */ mp_err mp_neg(const mp_int *a, mp_int *b) { mp_err err; if (a != b) { if ((err = mp_copy(a, b)) != MP_OKAY) { return err; } } if (!MP_IS_ZERO(b)) { b->sign = (a->sign == MP_ZPOS) ? MP_NEG : MP_ZPOS; } else { b->sign = MP_ZPOS; } return MP_OKAY; } #endif