diff options
| -rw-r--r-- | src/openssl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/openssl.c b/src/openssl.c index e146098..a73917a 100644 --- a/src/openssl.c +++ b/src/openssl.c @@ -1924,8 +1924,9 @@ static int bn__shr(lua_State *L) { static int bn__unm(lua_State *L) { BIGNUM *a = checksimple(L, 1, BIGNUM_CLASS); + BIGNUM *r = bn_dup(L, a); - BN_set_negative(a, !BN_is_negative(a)); + BN_set_negative(r, !BN_is_negative(a)); return 1; } /* bn__unm() */ |