使用字符串作为变量名（C ++）

Question

Assume I have Variable called "Volume", for example. I now have a file with Settings in it. Every Settings looks like this: ": I now go through this file from top to bottom, and I want the program to store the Setting in a Variable with an equal Name.

eG if there is "Volume: 76", I want the program to write "76" into the Variable "Volume". How can I make the program to get the right Variable just by the string? Is this even possible?

There is no code yet, since I haven't started working on it yet. I was making thoughts about it.

Answer 1

You can't use variables directly, since the name must be existent at compile time, but reading a file is runtime.

You can use std::map though. Each settings will be a key, and the value will be read in.

std::map<std::string, std::string> settings;
settings["volume"] = "76";

But, the values ("76" in this case) will be strings as well. You can not use differing types directly. I think, its possible with type erasure, but thats really advanced (and iam not fluent with it!).