Using getline(cin, s) after cin in c++ - Doubled up question

Answer:

Yes, it is possible to use getline(cin, s) after cin in C++.

In C++, cin is used to read input from the standard input or keyboard. However, it leaves a newline character in the input buffer after reading input. This can cause issues when using getline() to read input after cin, as it will read the remaining newline character instead of the desired input.

To avoid this issue, you can use the cin.ignore() function to ignore the remaining newline character in the input buffer before using getline().

Here's an example:

#include <iostream>
#include <string>
using namespace std;

int main() {
    string name;
    int age;
    
    cout << "Enter your name: ";
    cin >> name;
    cout << "Enter your age: ";
    cin >> age;
    cin.ignore(); // ignore the remaining newline character in the input buffer
    cout << "Enter your address: ";
    getline(cin, address);
    
    // do something with the input
    return 0;
}

In this example, we first use cin to read the user's name and age. We then use cin.ignore() to ignore the remaining newline character in the input buffer. Finally, we use getline() to read the user's address.

By using cin.ignore(), we ensure that getline() reads the desired input and not the remaining newline character in the input buffer.