How to get a variable from variant type, if you don't know a type of variable?

Question

Say, for example, I have a this:

std::variant<int, std::string> v;

I am assigning 5 to this variable:

v = 5;

or "Hello World":

v = "Hello World";

but, what if this depended on the user input and I need to cout it? I dont know the type...

the question is, how can I know a type that I want to get from variant type?

Is there even a way?

Answer 1

I think user will not input other than string or int variable .with typeof method you can check what type of v variable
cout<<typeof(v);
Compiler will automatically generat data type for the variant variable based in user input.

Answer 2

https://stackoverflow.com/questions/12081502/typeof-operator-in-c