I'm toying around with integrating ChaiScript into my Qt applications. When I have a function (in C++) that has Qt's quint64 data type which is just a unsigned long long int, ChaiScript::eval() will throw an error with the message "bad any cast." But if I try to access a method that returns a quint32/64, the result is just fine. e.g.:

void Class::yolo(quint64 i) {
    cout << (i * i) << endl; 
}

quint64 Class::swag() {
    return 14;
}

//...

Class c;
chai.add(var(&c), "c");

> c.yolo(20)
bad any cast
> print(c.swag())
14

Now let's saw I replace the parameter i's type with int, it works just fine and c.yolo(20) would return 400. Even replacing quint64 with unsigned long long int gives me the bad any cast.