capture by value class members

Question

Is there a way, when writing a lambda function within a member function, to capture fields of the enclosing class by value? The default catch-all = doesn\'t work be

Answer 1

Yes, simply write the [=] construct. For instance:

class MyClass {
    int a;
    void foo() {
        auto my_lambda = [a_by_val=a] {
            // do something with a_by_val
        }

        my_lambda();
    }
}