Question

I have a std::string with multiple lines and I need to read it line by line.
Please show me how to do it with a small example.

Ex: I have a string string h;

h will be:

Hello there.
How are you today?
I am fine, thank you.

I need to extract Hello there., How are you today?, and I am fine, thank you. somehow.

Answer 1

#include <sstream>
#include <iostream>

int main() {
    std::istringstream f("line1\nline2\nline3");
    std::string line;    
    while (std::getline(f, line)) {
        std::cout << line << std::endl;
    }
}