go read file to string

#include <iostream>
#include <fstream>
#include <string>

int main() {
    std::ifstream file("example.txt");
    std::string file_content((std::istreambuf_iterator<char>(file)),
                            (std::istreambuf_iterator<char>()));
    file.close();
    std::cout << file_content << std::endl;
    return 0;
}