ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS);
ECerr(EC_F_EC_POINT_INVERT, EC_R_INCOMPATIBLE_OBJECTS);
int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx)	{	if (group->meth->dbl == 0)		{		ECerr(EC_F_EC_POINT_DBL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);		return 0;		}	if (group->meth != a->meth)		{		ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS);		return 0;		}	return group->meth->invert(group, a, ctx);	}