C++ process string one by line

So I have string:

string message = "Hello\nHow are you?\nGood!"

I want to get it line by line in this format:

string line = "";

for (getline(message, line)) {
    // do something with the line
}

How can I achieve this? It doesn’t matter if getline will be in use.

I tried to split the string by \n but I can’t go through it with for loop

>Solution :

getline requires an input stream to work on. Fortunately, we have std::stringstream which you can probably tell from the name is a stream of a string. Using that changes your code to

std::string line;
std::stringstream ss(message);
while(getline(ss, line)) {
    // do something with the line
}