on_curve?

static VALUE ossl_ec_point_is_on_curve(VALUE self)
{
    EC_POINT *point;
    VALUE group_v = rb_iv_get(self, "@group");
    const EC_GROUP *group;

    Require_EC_POINT(self, point);
    SafeRequire_EC_GROUP(group_v, group);

    switch (EC_POINT_is_on_curve(group, point, ossl_bn_ctx)) {
    case 1: return Qtrue;
    case 0: return Qfalse;
    default: ossl_raise(cEC_POINT, "EC_POINT_is_on_curve");
    }

    UNREACHABLE;
}