Reuse structured binding variables when using a local struct-CodePudding

I have a function as follows:

auto foo(int i) {
    struct s {
        int i;
        std::string name;
    };

    return s{i 10, "hello there"};
}

And it works fine with structured bindings:

auto [i, name] = foo(10);

Is there a way to reuse the variables? i.e.

// Later in the code.
[i, name] = foo(20);

It doesn't work with std::tie because I'm not returning a tuple. I prefer a struct as it feels cleaner to me than a tuple. But if there is no other alternative, I'm open to switching to a tuple.

CodePudding user response：

Since the hidden variable introduced by a structured binding is unnamed, there's no easy way to refer to it to a assign a new value.

You could do

auto x = foo(10);
const auto &[i, name] = x;

Then assign to x to change the meaning of i and name.