How to copy a value

[IGI30]

Suppose I've entered string

char username[20];
std::string user_name;
std::cout << "Username: ";
std::getline(std::cin, user_name);

I to copy the value from user_name to username.

[MiiNiPaa]

std::strncpy(username, user_name.c_str(), 20);
username[19] = '\0'; //Safeguard